Major Shareholders
| 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 | As at 2025-03-31 | 
|---|---|---|---|---|---|---|---|---|---|---|---|
| Major shareholders | |||||||||||
| Major shareholders | |||||||||||
| Name | 
                                                鈴木明和
                                                
                                             | 
                                                滝田芳彦
                                                
                                             | 
                                                東京短資株式会社
                                                
                                             | 
                                                JPモルガン証券株式会社
                                                
                                             | 
                                                鈴木雅人
                                                
                                             | 
                                                唐悠子
                                                
                                             | 
                                                株式会社村田製作所
                                                
                                             | — | 
                                                鈴木仁志
                                                
                                             | 
                                                上田八木短資株式会社
                                                
                                             | 
                                                鈴木ミチ子
                                                
                                             | 
| Address | 
                                                愛知県名古屋市中区
                                                
                                             | 
                                                栃木県栃木市
                                                
                                             | 
                                                東京都中央区日本橋室町4-4-10
                                                
                                             | 
                                                東京都千代田区丸の内2-7-3
                                                
                                             | 
                                                神奈川県横浜市西区
                                                
                                             | 
                                                東京都江東区
                                                
                                             | 
                                                京都府長岡京市東神足1-10-1
                                                
                                             | — | 
                                                東京都世田谷区
                                                
                                             | 
                                                大阪府大阪市中央区高麗橋2-4-2
                                                
                                             | 
                                                愛知県名古屋市中区
                                                
                                             | 
| Number of shares held | 
                                                165,700
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                129,500
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                188,500
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                107,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                162,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                75,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                202,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                1,585,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                300,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                129,200
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
                                                126,300
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             | 
| Shareholding ratio (excluding treasury shares) | 
                                                0.0158
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0123
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0180
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0102
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0154
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0071
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0193
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.1515
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0286
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0123
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             | 
                                                0.0120
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             |