Balance Sheet
| Concept | As at 2023-12-31 | As at 2023-03-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                8,185,926,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,297,183,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                428,917,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                338,124,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                1,195,724,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                572,675,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials | 
                                                1,055,264,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                988,436,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                678,674,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                625,482,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -5,588,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,435,984,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                340,769,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                15,582,535,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                12,116,027,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                3,570,489,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,574,061,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                1,592,577,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,592,577,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets, net | 
                                                31,536,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,583,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                5,905,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,475,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                640,098,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                659,679,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Property, plant and equipment | ||
| Own-used assets | ||
| Leased assets | — | — | 
| Intangible assets | ||
| Intangible assets | 
                                                1,270,555,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,339,713,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Goodwill | 
                                                727,885,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                739,960,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                542,669,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                599,752,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other intangible assets | ||
| Investments and other assets | 
                                                2,516,522,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,575,491,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investment securities | 
                                                2,099,341,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,160,940,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term loans receivable | 
                                                160,313,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                156,136,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                256,866,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                258,414,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Non-current assets | 
                                                7,357,567,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,489,265,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Other assets | ||
| Assets | 
                                                22,940,103,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,605,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | ||
| Non-current liabilities | 
                                                2,620,173,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,818,613,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                1,779,488,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                995,500,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                183,694,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                181,478,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Asset retirement obligations | 
                                                27,868,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,628,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                4,391,366,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,452,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                990,394,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                951,389,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,257,159,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                932,983,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                7,011,539,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,270,931,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                15,190,256,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,871,972,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                4,978,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,978,566,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                1,209,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,209,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                9,099,873,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,781,589,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -97,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -97,649,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                738,306,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                462,388,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                108,269,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,208,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                15,928,563,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,334,361,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                22,940,103,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,605,292,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Current portion of long-term borrowings | 
                                                247,512,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                126,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses | 
                                                290,555,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                122,889,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses for directors (and other officers) | 
                                                97,187,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                87,900,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Net assets | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings | ||
| Valuation and translation adjustments |