Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | 
                                                8,342,881,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,290,680,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Cash and deposits | 
                                                348,637,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                367,667,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Notes receivable - trade | 
                                                5,776,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,381,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts receivable - trade | 
                                                993,111,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                972,511,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                18,920,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,146,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -973,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -957,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Land | 
                                                1,860,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,860,198,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                6,319,129,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,429,825,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets, net | 
                                                12,880,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,861,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                53,571,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                75,046,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                151,343,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                172,513,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                848,471,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                834,936,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation | 
                                                -697,128,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -662,423,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Own-used assets | ||
| Leased assets | 
                                                44,662,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,662,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accumulated depreciation | 
                                                -31,781,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -29,801,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                30,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,199,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                30,944,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,199,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other intangible assets | ||
| Investments and other assets | ||
| Investments and other assets | 
                                                238,704,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                236,309,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                217,568,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                215,748,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                22,687,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,112,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -1,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,552,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                6,588,777,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,699,333,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Current assets | ||
| Merchandise and finished goods | 
                                                1,252,991,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,323,036,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                1,197,077,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,171,965,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                626,818,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                578,497,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | ||
| Assets | 
                                                14,931,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,990,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Accounts payable - other | 
                                                476,247,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                531,653,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                3,373,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,577,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                75,476,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                68,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                117,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                120,075,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                1,980,836,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,907,830,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accrued consumption taxes | 
                                                51,503,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                57,789,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                208,035,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                210,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Non-current liabilities | ||
| Non-current liabilities | 
                                                379,723,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                382,871,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                9,882,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,575,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                2,360,559,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,290,701,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                12,550,364,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,698,655,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                1,557,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,557,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                1,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,566,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                9,614,322,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,779,296,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -186,957,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -203,641,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                20,735,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                656,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                12,571,099,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,699,312,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                14,931,659,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,990,014,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |