Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | 
                                                24,695,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,682,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cash and deposits | 
                                                2,878,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,025,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Notes receivable - trade | 
                                                176,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                133,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                4,530,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,474,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                548,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                502,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Land | 
                                                5,852,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,852,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                13,814,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,862,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets, net | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                191,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                127,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Own-used assets | ||
| Leased assets | — | — | 
| Tools, furniture and fixtures | — | — | 
| Tools, furniture and fixtures, net | 
                                                88,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                101,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                242,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                261,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                1,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,886,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                5,370,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,391,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                843,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                751,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -25,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -25,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                184,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                211,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                19,427,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,515,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Current assets | ||
| Merchandise and finished goods | 
                                                5,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,384,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                3,886,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,841,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                2,215,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,412,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | ||
| Assets | 
                                                44,122,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Non-current liabilities | ||
| Non-current liabilities | 
                                                9,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,947,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                4,844,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,275,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                75,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                119,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for retirement benefits for directors (and other officers) | 
                                                4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                11,348,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,418,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                6,173,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,901,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accrued expenses | 
                                                911,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                261,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                332,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                665,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                805,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | ||
| Lease liabilities | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Contract liabilities | 
                                                54,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                66,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses | 
                                                627,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                625,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                21,047,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,366,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                21,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,955,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                8,062,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,062,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                8,164,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,164,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                5,096,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,731,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -3,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                1,754,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,876,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                416,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                495,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                23,075,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,831,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                44,122,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |