Consolidated Statement Of Cash Flows
| Concept | As at 2024-12-31 | 2024-07-01 to 2024-12-31 | As at 2024-06-30 | As at 2023-12-31 | 2023-07-01 to 2023-12-31 | As at 2023-06-30 | 
|---|---|---|---|---|---|---|
| Consolidated statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Profit (loss) before income taxes | — | 
                                                3,065,617,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,440,109,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | 
                                                338,485,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                350,895,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividend income | — | 
                                                -2,210,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,948,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest expenses | — | 
                                                6,349,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,359,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in provision for bonuses | — | 
                                                -13,398,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -13,219,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in retirement benefit liability | — | 
                                                -18,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                14,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Foreign exchange losses (gains) | — | 
                                                9,645,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                609,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in trade receivables | — | 
                                                -1,471,847,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -816,827,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | — | 
                                                1,690,502,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                2,217,642,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in inventories | — | 
                                                -232,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -48,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | — | 
                                                -714,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -795,596,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in trade payables | — | 
                                                81,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                508,016,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                1,008,316,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,540,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                -36,368,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -208,767,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | — | 
                                                4,451,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,780,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | — | 
                                                -6,415,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -3,121,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | ||||||
| Payments into time deposits | — | 
                                                -2,649,013,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -91,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from withdrawal of time deposits | — | 
                                                634,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                78,011,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -3,705,028,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -644,320,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                -2,474,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -3,125,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | ||||||
| Dividends paid | — | 
                                                -547,234,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -475,266,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Repayments of long-term borrowings | — | 
                                                -174,952,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -150,952,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -737,872,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -639,109,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                -15,686,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -12,890,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                -9,645,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -609,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -3,444,229,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                256,279,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                9,751,143,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                13,195,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,291,783,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                10,035,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |