Semi-Annual Statement Of Cash Flows
| Concept | As at 2024-09-30 | 2024-04-01 to 2024-09-30 | As at 2024-03-31 | As at 2023-09-30 | 2023-04-01 to 2023-09-30 | As at 2023-03-31 | 
|---|---|---|---|---|---|---|
| Semi-annual statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Profit (loss) before income taxes | — | 
                                                714,921,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                636,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | 
                                                30,089,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                22,350,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Foreign exchange losses (gains) | — | 
                                                625,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                78,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in inventories | — | 
                                                -3,439,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -6,299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in trade payables | — | 
                                                -10,339,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -3,289,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | — | 
                                                629,072,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                874,993,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | — | 
                                                -312,678,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -271,750,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                324,409,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                610,096,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | ||||||
| Purchase of property, plant and equipment | — | 
                                                -788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -1,325,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of investment securities | — | 
                                                -29,039,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -318,791,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                1,502,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                3,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                138,023,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -48,385,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from financing activities | ||||||
| Purchase of treasury shares | — | 
                                                -200,579,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid | — | 
                                                -458,748,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -279,066,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -643,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -266,929,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                -995,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,238,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                -181,705,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                296,019,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                4,823,589,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,005,295,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,836,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,540,769,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |