Semi-Annual Balance Sheet
| Concept | As at 2024-03-31 | As at 2023-09-30 | 
|---|---|---|
| Semi-annual balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                31,882,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,093,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Inventories | 
                                                629,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                425,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,552,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,989,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -20,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -19,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                44,180,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,173,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                16,879,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,308,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                6,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                2,638,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,901,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                6,590,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,813,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                23,156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,050,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                51,570,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                50,061,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                7,182,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,858,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                75,040,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                73,182,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                119,221,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                116,356,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Accounts payable - trade | 
                                                2,757,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,698,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                71,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                71,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                2,777,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,073,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,346,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                15,194,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                16,797,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Accounts payable - other | 
                                                2,519,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,441,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Non-current liabilities | 
                                                4,165,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,249,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                71,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                806,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                879,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                19,359,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,047,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Provision for bonuses | 
                                                3,637,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,810,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                5,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | ||
| Capital surplus | 
                                                6,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | ||
| Retained earnings | 
                                                88,596,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                84,890,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -2,605,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,604,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                97,977,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                94,271,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                2,830,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,070,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                1,883,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,036,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                99,861,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                95,308,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                119,221,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                116,356,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |