Semi-Annual Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Semi-annual balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                12,705,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,738,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Securities | 
                                                1,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,500,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                2,421,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,922,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                52,445,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,143,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Property, plant and equipment | 
                                                12,333,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,263,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                3,175,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,877,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                16,123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                15,654,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                20,309,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                20,461,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                4,203,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,823,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -17,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                35,817,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                34,601,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                88,263,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,745,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Accounts payable - trade | 
                                                3,320,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,060,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                3,980,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,980,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                729,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,896,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                6,958,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,509,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                18,602,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,968,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Non-current liabilities | 
                                                5,468,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,846,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Long-term borrowings | 
                                                3,665,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,505,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,782,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                341,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                24,070,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,815,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Provision for bonuses | 
                                                1,167,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,151,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other liabilities | — | — | 
| Net assets | ||
| Share capital | 
                                                1,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | ||
| Capital surplus | ||
| Capital surplus | 
                                                1,883,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,848,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | ||
| Retained earnings | 
                                                58,365,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,372,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -3,239,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -3,287,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                58,207,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                56,130,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                4,676,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,790,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                5,985,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,799,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                64,192,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                61,930,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                88,263,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                90,745,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |