Consolidated Balance Sheet
| Concept | As at 2024-09-30 | As at 2024-03-31 | 
|---|---|---|
| Consolidated balance sheet | ||
| Balance sheet | ||
| Assets | ||
| Current assets | ||
| Cash and deposits | 
                                                11,172,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,333,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Notes and accounts receivable - trade | 
                                                57,865,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                45,568,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Merchandise and finished goods | 
                                                31,966,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                30,964,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Work in process | 
                                                284,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                298,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Raw materials and supplies | 
                                                26,185,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,193,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                5,361,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,102,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -185,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -207,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current assets | 
                                                135,100,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                126,038,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | ||
| Property, plant and equipment | ||
| Buildings and structures | — | — | 
| Buildings and structures, net | 
                                                32,481,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                31,638,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Own-used assets | ||
| Other | — | — | 
| Other, net | 
                                                38,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,444,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Property, plant and equipment | 
                                                71,318,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                65,083,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Intangible assets | ||
| Intangible assets | 
                                                4,605,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,710,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | ||
| Investment securities | 
                                                24,632,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                24,433,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                8,760,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,631,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Allowance for doubtful accounts | 
                                                -508,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -469,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Investments and other assets | 
                                                32,884,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                32,595,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current assets | 
                                                108,808,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                102,388,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Assets | 
                                                243,908,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                228,427,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | ||
| Current liabilities | ||
| Notes and accounts payable - trade | 
                                                21,781,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                18,935,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Short-term borrowings | 
                                                23,752,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,944,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Income taxes payable | 
                                                1,991,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                815,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current portion of long-term borrowings | 
                                                7,128,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,464,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provisions | ||
| Provision for bonuses | 
                                                2,182,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,095,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                13,569,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,769,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Current liabilities | 
                                                70,429,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                69,068,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for bonuses for directors (and other officers) | 
                                                23,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                42,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | ||
| Long-term borrowings | 
                                                15,001,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                13,327,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retirement benefit liability | 
                                                9,837,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,606,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Provision for retirement benefits for directors (and other officers) | 
                                                18,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                21,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Other | 
                                                5,480,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,367,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-current liabilities | 
                                                30,648,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                28,479,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities | 
                                                101,078,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                97,547,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | ||
| Shareholders' equity | 
                                                110,189,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                105,906,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Share capital | 
                                                9,248,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                9,248,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Capital surplus | 
                                                8,412,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                8,389,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Retained earnings | 
                                                94,137,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                89,919,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Treasury shares | 
                                                -1,608,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -1,652,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation and translation adjustments | 
                                                30,479,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                23,148,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Valuation difference on available-for-sale securities | 
                                                11,027,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                11,139,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Deferred gains or losses on hedges | 
                                                -7,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                4,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Foreign currency translation adjustment | 
                                                18,378,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                10,920,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Non-controlling interests | 
                                                2,161,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,825,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | 
                                                142,830,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                130,880,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Liabilities and net assets | 
                                                243,908,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                228,427,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
| Net assets | ||
| Shareholders' equity | ||
| Valuation and translation adjustments | ||
| Remeasurements of defined benefit plans | 
                                                1,080,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                1,083,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |