Consolidated Statement Of Income
| Concept | 2024-04-01 to 2024-09-30 | 2023-04-01 to 2023-09-30 | 
|---|---|---|
| Consolidated statement of income | ||
| Statement of income | ||
| Net sales | 
                                                1,535,239,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,442,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cost of sales | 
                                                884,558,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                843,278,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||
| Selling, general and administrative expenses | 
                                                506,111,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                464,031,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||
| Gross profit (loss) | 
                                                650,680,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                598,817,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Operating expenses | ||
| Research and development expenses | 
                                                169,927,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                147,307,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Ordinary profit (loss) | 
                                                143,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                140,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net sales | ||
| Operating profit (loss) | 
                                                144,569,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                134,786,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cost of sales | ||
| Selling, general and administrative expenses | ||
| Non-operating income | ||
| Interest income | 
                                                3,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                172,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating income | 
                                                3,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-operating expenses | ||
| Non-operating expenses | 
                                                4,569,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) before income taxes | 
                                                143,286,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                140,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Gross profit | ||
| Income taxes - current | 
                                                22,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes - deferred | 
                                                -103,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes | 
                                                21,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,145,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) | 
                                                121,390,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                121,025,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit (loss) attributable to owners of parent | 
                                                121,390,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                121,025,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | ||
| Valuation difference on available-for-sale securities | 
                                                -4,616,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                930,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                379,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -586,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other comprehensive income | 
                                                -4,236,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Profit attributable to | ||
| Comprehensive income | 
                                                117,153,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                121,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to | ||
| Comprehensive income attributable to owners of parent | 
                                                117,153,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                121,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Comprehensive income attributable to non-controlling interests | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |