Semi-Annual Statement Of Cash Flows
| Concept | 2024-04-01 to 2025-03-31 | As at 2025-03-31 | 2024-04-01 to 2025-03-31 | 2023-04-01 to 2024-03-31 | As at 2024-03-31 | 2023-04-01 to 2024-03-31 | 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 | 
                                                7,859,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                8,220,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,266,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                5,951,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | — | 
                                                2,502,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,428,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Impairment losses | — | — | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in allowance for doubtful accounts | — | — | 
                                                6,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividend income | — | — | 
                                                -471,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -369,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest expenses | — | — | 
                                                239,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                258,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in provision for bonuses | — | — | 
                                                47,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -56,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Decrease (increase) in inventories | — | — | 
                                                -930,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,321,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Increase (decrease) in trade payables | — | — | 
                                                -5,547,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,840,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                316,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -291,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Subtotal | — | — | 
                                                2,158,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,846,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest and dividends received | — | — | 
                                                468,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                374,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Interest paid | — | — | 
                                                -241,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -271,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) operating activities | — | — | 
                                                1,447,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,478,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from investing activities | |||||||
| Purchase of property, plant and equipment | — | — | 
                                                -2,826,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,031,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of property, plant and equipment | — | — | 
                                                25,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Purchase of investment securities | — | — | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Proceeds from sale of investment securities | — | — | 
                                                1,470,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                611,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -390,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -113,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) investing activities | — | — | 
                                                -1,721,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,442,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash flows from financing activities | |||||||
| Proceeds from long-term borrowings | — | — | 
                                                94,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Repayments of long-term borrowings | — | — | 
                                                -3,212,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,751,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Dividends paid | — | — | 
                                                -431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -287,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net cash provided by (used in) financing activities | — | — | 
                                                -3,557,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -4,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Other, net | — | — | 
                                                -7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | — | 
                                                12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | — | 
                                                -3,819,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -7,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | — | 
| Cash and cash equivalents | — | 
                                                11,528,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                15,347,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                23,263,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |