Quarterly Balance Sheet
| Concept | As at 2023-12-31 | As at 2023-03-31 | 
|---|---|---|
| Quarterly balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                3,467,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                3,570,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                2,188,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,602,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                27,107,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                22,229,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                2,096,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,826,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                1,049,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                701,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -5,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                72,963,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                72,925,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | 
                                                27,483,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                27,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | ||
| Land | 
                                                14,100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                14,142,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | — | — | 
| Other, net | 
                                                13,383,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,409,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | 
                                                372,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                423,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Investments and other assets | 
                                                27,307,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,462,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                21,068,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                17,144,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                877,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,024,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                55,163,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,437,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                128,127,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                124,363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Notes and accounts payable - trade | 
                                                6,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                7,045,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                47,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                486,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                5,085,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,908,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                26,519,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                29,510,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                37,304,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                38,165,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                6,831,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,197,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                44,523,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                43,729,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                71,043,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                73,240,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Share capital | 
                                                11,810,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,810,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                156,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                36,551,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,225,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -524,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -523,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Shareholders' equity | 
                                                47,994,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                44,513,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | ||
| Valuation difference on available-for-sale securities | 
                                                9,524,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,732,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                9,089,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                6,448,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                57,084,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                51,123,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                128,127,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                124,363,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |