Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Akihiro Yoshimoto | Sanraku-Ocean Co. | 2 |
| 1 | Isao Takai | Oda Gosen Kogyo Kabushiki Kaisha | 2 |
| 3 | Shinji Takeuchi | Daiwa Seiko Co. | 1 |
| 3 | Eiichi Fukuda | Komatsu Shisakusho | 1 |
| 3 | Ikuo Nishi | Maruwa Co. | 1 |
| 3 | Shunichi Nagai | Komatsu Shisakusho | 1 |
| 3 | Masahiro Tatsuo | Komatsu Shisakusho | 1 |