Consolidated Statement Of Income
| Concept | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 2023-01-01 to 2023-12-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of income | ||||||||||||||
| Statement of income | ||||||||||||||
| Net sales | — | 
                                                18,229,471,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                16,945,344,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                17,094,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,292,353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating expenses | ||||||||||||||
| Selling, general and administrative expenses | — | 
                                                2,072,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,096,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,123,016,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,917,772,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Depreciation | — | — | — | — | — | — | 
                                                72,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                64,484,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Provision of allowance for doubtful accounts | — | 
                                                263,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -980,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cost of sales | — | 
                                                13,310,829,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                13,422,294,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                12,864,070,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,070,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating expenses | ||||||||||||||
| Operating expenses - general | ||||||||||||||
| Remuneration for directors (and other officers) | — | 
                                                209,433,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                147,950,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                129,080,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                221,809,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Rent expenses on land and buildings | — | — | — | — | — | — | 
                                                94,416,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                89,090,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Operating expenses | ||||||||||||||
| Operating expenses | ||||||||||||||
| Other operating expenses | ||||||||||||||
| Net sales | ||||||||||||||
| Ordinary profit (loss) | — | 
                                                2,882,588,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,664,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,281,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,495,737,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Gross profit (loss) | — | 
                                                4,918,642,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                3,523,049,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                4,230,302,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,222,325,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Operating expenses | ||||||||||||||
| Operating profit (loss) | — | 
                                                2,846,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,426,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,107,285,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,304,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| General and administrative expenses | ||||||||||||||
| Salaries | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Non-operating income | ||||||||||||||
| Interest income | — | 
                                                71,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                17,995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                25,953,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                60,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividend income | — | — | — | — | — | — | 
                                                230,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other | — | 
                                                14,988,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                11,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,631,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,273,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating income | — | 
                                                126,866,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                436,976,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                251,681,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                273,771,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cost of sales | ||||||||||||||
| Extraordinary income | — | 
                                                2,722,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,803,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                29,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Selling, general and administrative expenses | ||||||||||||||
| Bonuses | — | — | — | — | — | — | 
                                                72,301,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                117,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Non-operating expenses | ||||||||||||||
| Interest expenses | — | 
                                                75,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                64,588,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                76,767,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                79,020,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other | — | 
                                                7,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,912,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                549,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,567,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Non-operating expenses | — | 
                                                90,466,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                198,746,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                77,316,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,587,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Extraordinary losses | — | 
                                                2,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,806,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) before income taxes | — | 
                                                2,882,427,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,663,526,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,277,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,491,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Gross profit | ||||||||||||||
| Extraordinary income | ||||||||||||||
| Gain on sale of non-current assets | — | 
                                                2,722,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                1,803,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                29,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes - current | — | 
                                                904,476,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                782,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                989,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,041,727,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes - deferred | — | 
                                                45,969,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -15,219,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                30,081,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,618,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Extraordinary losses | ||||||||||||||
| Loss on sale of non-current assets | — | 
                                                577,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                86,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Loss on retirement of non-current assets | — | 
                                                2,305,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                3,975,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,942,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes | — | 
                                                950,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                767,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                1,019,224,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,059,345,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit (loss) | 
                                                1,895,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,931,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,895,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,895,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                1,895,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,258,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,258,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,431,735,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,258,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,258,480,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) attributable to owners of parent | — | 
                                                1,931,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,931,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,931,982,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,431,735,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,431,735,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                2,431,735,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | ||||||||||||||
| Valuation difference on available-for-sale securities | — | 
                                                -84,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Foreign currency translation adjustment | — | 
                                                380,337,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                201,652,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other comprehensive income | — | 
                                                380,253,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                201,797,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Profit attributable to | ||||||||||||||
| Comprehensive income | — | 
                                                2,312,235,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                2,633,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to | ||||||||||||||
| Comprehensive income attributable to owners of parent | — | 
                                                2,312,235,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                2,633,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Comprehensive income attributable to non-controlling interests | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — |