Balance Sheet
| Concept | As at 2024-06-30 | As at 2023-12-31 | 
|---|---|---|
| Balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                142,607,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                147,722,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                12,631,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,631,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                24,087,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                25,578,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                27,742,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                26,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                175,412,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                166,387,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -12,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -11,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                13,282,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,228,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                488,650,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                473,821,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Land | 
                                                24,208,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,883,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                654,688,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                551,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                356,396,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                284,061,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other, net | 
                                                5,181,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,474,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Own-used assets | ||
| Intangible assets | ||
| Intangible assets | 
                                                7,534,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,687,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                7,534,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,687,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other intangible assets | ||
| Investments and other assets | ||
| Investment securities | 
                                                2,297,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,045,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                37,921,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,583,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                7,395,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,347,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -302,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -282,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                4,290,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,205,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                700,144,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                599,265,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other assets | — | — | 
| Other assets | ||
| Assets | 
                                                1,188,794,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,073,087,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                49,272,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,107,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                95,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                92,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                7,877,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,306,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                102,119,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                123,271,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                200,298,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                204,529,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                2,027,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,537,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Non-current liabilities | ||
| Non-current liabilities | 
                                                330,140,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                233,030,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                289,726,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                190,140,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                16,732,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                132,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                114,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                530,439,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                437,559,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Other liabilities | — | — | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                559,199,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                551,096,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                199,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                199,034,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                85,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                85,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                275,802,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                267,739,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -923,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                34,539,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,059,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Revaluation reserve for land | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                658,355,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                635,527,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                1,188,794,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,073,087,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Valuation and translation adjustments | ||
| Shareholders' equity | ||
| Capital surplus | ||
| Retained earnings |