Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiroyuki Tokuda | Canon | 3 |
| 2 | Kazuo Abe | Shikoku Kakoki Co. | 2 |
| 2 | Masato Sakai | Hitachi Koki Co. | 2 |
| #4 | Motoyuki Suzuki | Hitachi | 1 |
| #4 | Shinya Yamamoto | Toyota Industries | 1 |
| #4 | Kazuo Matsumoto | Tanabe Seiyaku Co. | 1 |
| #4 | Taro Nogami | Hitachi | 1 |
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