Semi-Annual Consolidated Balance Sheet
| Concept | As at 2025-03-31 | As at 2024-09-30 | 
|---|---|---|
| Semi-annual consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                33,155,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,697,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Inventories | 
                                                1,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                543,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,379,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,412,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -20,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -20,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                47,750,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                46,672,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                16,594,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,094,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                7,041,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,280,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Land | 
                                                6,863,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,915,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                2,690,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,898,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                7,757,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,064,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                50,217,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                53,049,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                20,043,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                7,963,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,609,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                74,569,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                78,209,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                122,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                124,882,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Short-term borrowings | 
                                                35,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                71,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                2,140,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,682,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,119,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                15,011,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                19,347,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Retirement benefit liability | 
                                                2,236,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,251,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                690,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                749,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                3,290,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,357,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                18,301,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,705,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses | 
                                                3,342,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,238,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                5,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,700,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                6,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,286,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                91,741,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                91,138,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -3,060,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -2,606,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                100,667,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                100,519,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                4,139,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,543,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Remeasurements of defined benefit plans | 
                                                -788,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -885,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                3,351,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,657,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                104,018,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                102,176,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                122,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                124,882,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |