Consolidated Statement Of Income
| Concept | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 2024-04-01 to 2025-03-31 | 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 | 2023-04-01 to 2024-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Consolidated statement of income | ||||||||||||||||||||||
| Statement of income | ||||||||||||||||||||||
| Net sales | — | 
                                                5,160,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                964,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                969,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                969,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                959,658,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                816,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                812,850,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,851,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                812,850,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                816,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cost of sales | — | — | — | — | 
                                                335,071,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                333,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                298,004,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                299,408,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||||||||||||||||
| Operating expenses - general | ||||||||||||||||||||||
| Remuneration for directors (and other officers) | — | — | — | — | 
                                                52,650,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                56,520,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | — | — | 
                                                6,119,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                1,970,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||||||||||||||||
| Selling, general and administrative expenses | — | — | — | — | 
                                                425,116,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                419,272,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                402,203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                412,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other | — | — | — | — | 
                                                97,203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                95,763,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||||||||||||||||
| Net sales | ||||||||||||||||||||||
| Gross profit (loss) | — | — | — | — | 
                                                634,461,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                626,459,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                514,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                517,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating profit (loss) | — | 
                                                1,164,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                208,180,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                209,345,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                209,345,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                207,186,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                104,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                107,816,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,516,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                112,642,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                104,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Ordinary profit (loss) | — | — | — | — | 
                                                209,861,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                219,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                145,815,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                125,413,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Operating expenses | ||||||||||||||||||||||
| Research and development expenses | — | — | — | — | 
                                                119,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                119,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                130,474,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                129,983,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| General and administrative expenses | ||||||||||||||||||||||
| Salaries | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
| Non-operating income | ||||||||||||||||||||||
| Interest income | — | — | — | — | 
                                                454,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,699,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                2,357,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other | — | — | — | — | 
                                                324,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                939,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                2,931,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,931,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating income | — | — | — | — | 
                                                4,925,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                16,651,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                34,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,337,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Miscellaneous income | — | — | — | — | 
                                                625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Selling, general and administrative expenses | ||||||||||||||||||||||
| Legal welfare expenses | — | — | — | — | 
                                                17,704,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                17,110,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Bonuses | — | — | — | — | 
                                                9,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                7,479,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Supplies expenses | — | — | — | — | 
                                                2,451,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                2,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                1,766,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,800,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cost of sales | ||||||||||||||||||||||
| Non-operating expenses | — | — | — | — | 
                                                4,409,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                3,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,223,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest expenses | — | — | — | — | 
                                                1,260,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                953,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                839,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,130,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Non-operating expenses | ||||||||||||||||||||||
| Other | — | — | — | — | 
                                                143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                122,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                80,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                93,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary losses | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                10,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                21,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                769,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Impairment losses | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                602,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) before income taxes | — | — | — | — | 
                                                209,861,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                209,442,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                124,225,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                124,644,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Gross profit | ||||||||||||||||||||||
| Income taxes - current | — | — | — | — | 
                                                5,244,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                4,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                5,438,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,857,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Extraordinary losses | ||||||||||||||||||||||
| Income taxes - deferred | — | — | — | — | 
                                                -44,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -44,430,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -67,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -67,908,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes | — | — | — | — | 
                                                -39,185,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | 
                                                -39,604,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | 
                                                -62,469,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -62,050,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit (loss) | — | — | — | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) attributable to owners of parent | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Profit attributable to | ||||||||||||||||||||||
| Comprehensive income | — | — | — | — | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income attributable to | ||||||||||||||||||||||
| Comprehensive income attributable to owners of parent | — | — | — | — | 
                                                249,047,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                186,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Comprehensive income attributable to non-controlling interests | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — |