Consolidated Balance Sheet
| Concept | As at 2023-12-31 | As at 2023-03-31 | 
|---|---|---|
| Consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                14,850,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,870,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                1,741,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,670,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                1,336,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                888,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                1,508,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,583,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                558,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,470,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                39,130,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                36,013,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                49,491,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,020,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                25,075,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,473,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investment securities | 
                                                22,545,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,423,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term loans receivable | 
                                                146,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax assets | 
                                                101,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                88,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,339,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,863,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -57,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -57,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                10,033,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,234,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Own-used assets | ||
| Machinery, equipment and vehicles | — | — | 
| Machinery, equipment and vehicles, net | 
                                                7,106,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,732,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                4,679,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,679,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Construction in progress | 
                                                203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                466,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                1,090,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,187,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                23,113,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,299,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Other intangible assets | ||
| Other | 
                                                1,302,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,247,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                1,302,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,247,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Assets | 
                                                88,621,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,033,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Non-current liabilities | ||
| Long-term borrowings | 
                                                1,299,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,045,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred tax liabilities | 
                                                1,721,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                842,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                21,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                3,265,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,213,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                118,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                107,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                6,426,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,226,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | ||
| Notes and accounts payable - trade | 
                                                11,011,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,882,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                4,924,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,314,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                756,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                469,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Lease liabilities | 
                                                11,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                3,818,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,924,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                24,537,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,595,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses for directors (and other officers) | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                75,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                30,964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,822,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                41,675,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                39,592,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                4,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,753,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                4,212,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,207,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                33,809,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,734,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -1,099,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,102,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                9,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,601,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                5,873,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,273,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                3,829,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,180,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                6,143,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,017,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                57,656,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                52,211,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                88,621,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                82,033,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Valuation and translation adjustments | ||
| Remeasurements of defined benefit plans | 
                                                134,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                147,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |