Directors (And Other Officers)
| Concept | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | As at 2025-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|
| Directors (and other officers) | ||||||||||
| Information about directors (and corporate auditors) | ||||||||||
| Official title or position | 
                                                取締役 (監査等委員) 
                                                
                                             | — | 
                                                代表取締役社長
                                                
                                             | 
                                                取締役会長
                                                
                                             | 
                                                取締役 (監査等委員)
                                                
                                             | 
                                                取締役 (監査等委員) 
                                                
                                             | 
                                                取締役 (監査等委員) 
                                                
                                             | 
                                                取締役経営管理部長
                                                
                                             | 
                                                取締役開発部長
                                                
                                             | 
                                                取締役研究部長
                                                
                                             | 
| Name | 
                                                森川 さち子
                                                
                                             | — | 
                                                松村 米浩
                                                
                                             | 
                                                松村 眞良
                                                
                                             | 
                                                岩谷 邦夫
                                                
                                             | 
                                                山崎 泰志
                                                
                                             | 
                                                大城 紀子
                                                
                                             | 
                                                藤岡  健
                                                
                                             | 
                                                秋友 比呂志
                                                
                                             | 
                                                濱本 英利
                                                
                                             | 
| Date of birth | 
                                                1977-05-13
                                                
                                             | — | 
                                                1970-09-10
                                                
                                             | 
                                                1944-09-07
                                                
                                             | 
                                                1942-03-25
                                                
                                             | 
                                                1972-04-17
                                                
                                             | 
                                                1972-12-27
                                                
                                             | 
                                                1967-07-05
                                                
                                             | 
                                                1961-04-13
                                                
                                             | 
                                                1969-04-14
                                                
                                             | 
| Career summary | — | — | ||||||||
| Term of office | 
                                                (注)1,2,4
                                                
                                             | — | 
                                                (注)1,3,5
                                                
                                             | 
                                                (注)1,3
                                                
                                             | 
                                                (注)1,2,4
                                                
                                             | 
                                                (注)1,2,4
                                                
                                             | 
                                                (注)1,2,4
                                                
                                             | 
                                                (注)1,3
                                                
                                             | 
                                                (注)1,3
                                                
                                             | 
                                                (注)1,3
                                                
                                             | 
| Number of shares held (Ordinary shares) | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                462,900
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                233,100
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                200,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                1,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                14,800
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                14,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             |