Semi-Annual Statement Of Cash Flows
| Concept | As at 2024-12-31 | 2024-01-01 to 2024-12-31 | 2023-01-01 to 2023-12-31 | As at 2023-12-31 | As at 2022-12-31 | 
|---|---|---|---|---|---|
| Semi-annual statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Profit (loss) before income taxes | — | 
                                                467,490,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                514,005,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Depreciation | — | 
                                                100,845,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,078,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in allowance for doubtful accounts | — | 
                                                9,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividend income | — | 
                                                -11,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest expenses | — | 
                                                2,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in provision for bonuses | — | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in trade receivables | — | 
                                                -47,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -17,125,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Decrease (increase) in inventories | — | 
                                                116,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -275,770,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Increase (decrease) in trade payables | — | 
                                                78,372,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,061,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                29,533,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,848,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Subtotal | — | 
                                                905,528,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                278,690,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                11,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -2,754,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -12,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Income taxes paid | — | 
                                                -173,896,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -143,489,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                728,888,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                135,189,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -10,442,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -762,706,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                -1,203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -353,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -14,534,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -769,509,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Proceeds from long-term borrowings | — | 
                                                500,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -91,674,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -26,704,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -39,941,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,978,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                368,384,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -51,682,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                1,082,738,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -686,002,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                2,358,581,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,275,843,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,961,846,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |