Consolidated Statement Of Income
| Concept | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2023-04-01 to 2024-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 2022-04-01 to 2023-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of income | ||||||||||||||||||||||
| Statement of income | ||||||||||||||||||||||
| Ordinary income | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Other operating income | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Share of profit of entities accounted for using equity method | — | — | — | — | — | — | 
                                                9,932,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                2,058,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net sales | — | — | — | — | 
                                                12,764,689,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,475,433,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,986,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,493,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,017,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                12,986,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,818,427,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                4,267,257,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,870,338,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                902,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                11,039,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                11,039,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cost of sales | — | — | — | — | 
                                                10,354,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,543,033,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                9,275,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                9,469,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||||||||||||||||||||||
| Operating expenses - general | ||||||||||||||||||||||
| Remuneration for directors (and other officers) | — | — | — | — | 
                                                175,087,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                181,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                153,628,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                160,228,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Depreciation | — | — | — | — | 
                                                27,306,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                27,678,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | 
| Operating expenses | ||||||||||||||||||||||
| Selling, general and administrative expenses | — | — | — | — | 
                                                1,365,231,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,384,243,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,019,135,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                1,042,560,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||||||||||||||||||||||
| Net sales | ||||||||||||||||||||||
| Gross profit (loss) | — | — | — | — | 
                                                2,410,118,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,443,849,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,542,973,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                1,570,379,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary profit (loss) | — | — | — | — | 
                                                1,054,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,075,002,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                507,554,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                512,726,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating profit (loss) | — | — | — | — | 
                                                1,044,886,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,010,588,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,059,605,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,335,194,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,339,935,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                523,838,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                246,172,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,288,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -36,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,498,008,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                527,819,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||||||||||||||||||||||
| General and administrative expenses | ||||||||||||||||||||||
| Salaries | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Cost of sales | ||||||||||||||||||||||
| Selling, general and administrative expenses | ||||||||||||||||||||||
| Non-operating income | ||||||||||||||||||||||
| Dividend income | — | — | — | — | — | — | 
                                                2,495,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                845,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Interest income | — | — | — | — | — | — | 
                                                108,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | — | — | 
                                                4,826,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,633,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                8,728,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                9,282,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating income | — | — | — | — | 
                                                18,777,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                24,008,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                10,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                13,518,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Extraordinary income | — | — | — | — | 
                                                184,038,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                184,038,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                147,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                147,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating expenses | — | — | — | — | 
                                                8,764,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,611,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                26,585,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                28,611,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Interest expenses | — | — | — | — | 
                                                3,768,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                3,615,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                5,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                4,891,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Extraordinary losses | — | — | — | — | 
                                                243,397,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                243,397,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                79,454,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                79,454,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating expenses | ||||||||||||||||||||||
| Other | — | — | — | — | 
                                                1,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                10,804,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                12,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) before income taxes | — | — | — | — | 
                                                995,540,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,015,642,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                428,246,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                433,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Gross profit | ||||||||||||||||||||||
| Extraordinary income | ||||||||||||||||||||||
| Gain on sale of non-current assets | — | — | — | — | 
                                                124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                147,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                147,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes - current | — | — | — | — | 
                                                167,260,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                173,906,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                36,621,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                40,835,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes - deferred | — | — | — | — | 
                                                156,279,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                152,238,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -118,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -118,298,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Extraordinary losses | ||||||||||||||||||||||
| Loss on sale of non-current assets | — | — | — | — | 
                                                19,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                19,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                9,263,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                9,263,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Loss on retirement of non-current assets | — | — | — | — | 
                                                62,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                62,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                70,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                70,191,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes | — | — | — | — | 
                                                323,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                326,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -82,066,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -77,463,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) | — | 
                                                672,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                672,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                672,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                689,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                672,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                510,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                510,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                510,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                510,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                510,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) attributable to owners of parent | 
                                                689,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                689,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                689,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                510,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | 
                                                510,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                510,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||||||||||||||||||||||
| Valuation difference on available-for-sale securities | — | — | — | — | — | — | 
                                                10,760,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                9,583,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | — | — | — | — | — | — | 
                                                4,777,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                4,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans, net of tax | — | — | — | — | — | — | 
                                                -2,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                75,621,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | — | — | — | — | — | — | 
                                                13,231,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                90,026,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit attributable to | ||||||||||||||||||||||
| Comprehensive income | — | — | — | — | — | — | 
                                                702,729,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                600,909,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to | ||||||||||||||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | — | — | — | 
                                                702,729,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                600,909,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |