Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Non-current assets | 
                                                18,662,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,388,877,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                1,616,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,580,010,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                949,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                949,043,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                667,378,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                630,967,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Intangible assets | 
                                                632,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                687,169,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill | 
                                                423,007,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                457,630,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                209,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                229,538,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Investment securities | 
                                                15,956,946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,663,685,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                16,414,479,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,121,697,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shares of subsidiaries and associates | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                456,532,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                457,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | ||
| Cash and deposits | 
                                                1,340,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,732,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - other | 
                                                15,757,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                86,655,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Finished goods | 
                                                743,389,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                744,912,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials | 
                                                3,710,377,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,711,585,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                393,729,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                447,404,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -299,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -499,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,553,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                714,601,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                24,496,590,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,449,570,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Money held in trust | 
                                                14,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,200,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Own-used assets | ||
| Intangible assets | ||
| Other intangible assets | ||
| Investments and other assets | ||
| Other assets | ||
| Assets | 
                                                43,159,575,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,838,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                2,893,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,095,392,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Advances received | 
                                                217,544,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                63,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current portion of long-term borrowings | 
                                                36,504,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accrued expenses | 
                                                281,009,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                246,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                70,814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                361,112,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                327,397,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                70,553,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Contract liabilities | 
                                                1,072,641,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                891,842,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                6,920,421,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,905,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                161,375,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                149,664,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Non-current liabilities | ||
| Non-current liabilities | 
                                                2,774,814,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,674,045,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                239,269,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                257,366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                2,493,054,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,372,346,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                21,235,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,670,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                9,695,236,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,579,057,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Deferred tax liabilities for land revaluation | 
                                                9,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                27,894,002,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,314,026,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                2,097,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,097,606,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                3,332,126,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,316,731,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                26,055,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,543,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -3,591,099,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,643,498,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                5,509,600,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,843,288,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                5,899,928,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,269,293,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Revaluation reserve for land | 
                                                -434,203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -434,203,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share award rights | 
                                                14,565,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,012,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share acquisition rights | 
                                                46,170,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,064,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                33,464,339,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                37,259,391,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                43,159,575,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,838,448,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |