Statement Of Cash Flows
| Concept | As at 2023-09-30 | 2023-04-01 to 2023-09-30 | As at 2023-03-31 | As at 2022-09-30 | 2022-04-01 to 2022-09-30 | As at 2022-03-31 | 
|---|---|---|---|---|---|---|
| Statement of cash flows | ||||||
| Statement of cash flows | ||||||
| Cash flows from operating activities | ||||||
| Profit (loss) before income taxes | — | 
                                                572,015,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                315,971,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Depreciation | — | 
                                                348,462,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                297,275,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividend income | — | 
                                                -13,463,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -14,445,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest expenses | — | 
                                                793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                296,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in provision for bonuses | — | 
                                                62,892,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -71,990,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in trade receivables | — | 
                                                -407,371,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -490,354,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Decrease (increase) in inventories | — | 
                                                9,848,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                351,745,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Increase (decrease) in trade payables | — | 
                                                -53,469,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                131,413,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Subtotal | — | 
                                                604,775,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                638,695,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Income taxes paid | — | 
                                                -38,188,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -74,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                120,367,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                37,599,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) operating activities | — | 
                                                583,507,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                587,318,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest and dividends received | — | 
                                                14,323,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                14,435,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Interest paid | — | 
                                                -793,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -296,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from operating activities | ||||||
| Loss (gain) on sale of non-current assets | — | 
                                                -2,443,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -9,657,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from operating activities | ||||||
| Loss (gain) on sale of investment securities | — | 
                                                -67,073,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from investing activities | ||||||
| Purchase of securities | — | 
                                                -3,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -2,000,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of property, plant and equipment | — | 
                                                -399,540,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -168,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from sale of property, plant and equipment | — | 
                                                3,453,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                11,777,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Purchase of investment securities | — | 
                                                -109,883,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -799,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -189,465,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                817,162,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Proceeds from sale of investment securities | — | 
                                                328,985,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Other, net | — | 
                                                -7,257,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -6,946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash flows from facilities maintenance and investing activities | ||||||
| Cash flows from financing activities | ||||||
| Purchase of treasury shares | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -72,300,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Dividends paid | — | 
                                                -115,387,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -117,193,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net cash provided by (used in) financing activities | — | 
                                                -125,302,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                -193,647,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                28,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                6,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                297,270,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,217,365,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
| Cash and cash equivalents | 
                                                4,948,092,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,650,822,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                5,424,515,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | 
                                                4,207,150,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |