Directors (And Other Officers)
| Concept | 
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                                
                                    
                                        As at 2025-06-30  | 
                            
                        
|---|---|---|---|---|---|---|---|---|---|---|
| Directors (and other officers) | ||||||||||
| Information about directors (and corporate auditors) | ||||||||||
| Official title or position | — | 
                                        
                                             
                                                 取締役専務 執行役員
                                                
                                             
                                        
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                                                取締役副社長執行役員
                                                
                                             
                                        
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                                                監査役
                                                
                                             
                                        
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                                                常勤監査役
                                                
                                             
                                        
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                                                 取締役専務 執行役員
                                                
                                             
                                        
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                                                監査役
                                                
                                             
                                        
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                                                取締役
                                                
                                             
                                        
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                                                取締役
                                                
                                             
                                        
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                                                代表取締役社長
                                                
                                             
                                        
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| Name | — | 
                                        
                                             
                                                大  島  武  人
                                                
                                             
                                        
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                                                大  橋  徹  也
                                                
                                             
                                        
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                                                鶴 見 真 利 子 (現姓:小林)
                                                
                                             
                                        
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                                                松 井 雄 一 郎
                                                
                                             
                                        
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                                                髙  原  一  登
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                中 谷 内 茂 樹
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                田  倉  榮  美
                                                
                                             
                                        
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                                                菅  谷  朋  子
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                巻  野      徹
                                                
                                             
                                        
                                     | 
                                
                            
| Date of birth | — | 
                                        
                                             
                                                1963-03-22
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1960-03-07
                                                
                                             
                                        
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                                                1971-06-22
                                                
                                             
                                        
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                                                1964-05-09
                                                
                                             
                                        
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                                                1965-03-12
                                                
                                             
                                        
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                                                1968-09-22
                                                
                                             
                                        
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                                                1954-02-15
                                                
                                             
                                        
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                                                1968-03-29
                                                
                                             
                                        
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                                                1956-01-14
                                                
                                             
                                        
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| Career summary | — | |||||||||
| Term of office | — | 
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)5
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)4
                                                
                                             
                                        
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                                                (注)3
                                                
                                             
                                        
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                                                (注)4
                                                
                                             
                                        
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                                                (注)3
                                                
                                             
                                        
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                                                (注)3
                                                
                                             
                                        
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                                                (注)3
                                                
                                             
                                        
                                     | 
                                
                            
| Number of shares held (Ordinary shares) | 
                                        
                                             
                                                52,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                5,800
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                700
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                3,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                7,400
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                4,100
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                30,100
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     |