Quarterly Consolidated Balance Sheet
| Concept | As at 2024-06-30 | As at 2023-12-31 | 
|---|---|---|
| Quarterly consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                32,743,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,483,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                2,489,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,870,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                11,586,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,715,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                206,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,077,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                967,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                96,027,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,266,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                32,859,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,104,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                11,434,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,632,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Machinery, equipment and vehicles | — | — | 
| Machinery, equipment and vehicles, net | 
                                                2,186,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,075,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                15,324,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,313,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Leased assets | — | — | 
| Leased assets, net | 
                                                18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                526,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                669,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                1,454,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                8,186,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,340,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                2,664,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,481,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                380,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                909,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                810,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                42,500,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,878,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                138,527,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                131,145,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Income taxes payable | 
                                                1,176,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,129,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,850,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,045,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                18,057,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,531,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Retirement benefit liability | 
                                                1,447,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,428,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                0
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                2,374,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,768,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                20,431,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,299,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                4,969,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,969,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                10,617,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,609,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                99,629,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,283,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -2,435,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,459,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                112,780,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                110,403,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                812,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                643,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                4,362,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,662,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans | 
                                                -20,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -15,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                5,153,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,289,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                161,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                153,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                118,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                113,845,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                138,527,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                131,145,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |