Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Sadashi Hanada | Kawasaki | 2 |
| 1 | Yoshikazu Takegawa | Amada Co. | 2 |
| 3 | Koichi Wada | Kuraray Co. | 1 |
| 3 | Masaaki Miyanaga | Kabushiki Kaisha Miyanaga | 1 |
| 3 | Mitsuharu Kishimoto | Kawasaki | 1 |
| 3 | Seisuke Hukumura | Kobe Steel | 1 |
| 3 | Isao Nagai | Nippon Shokubai Kagaku Kogyo Co. | 1 |
| 3 | Yasuhiro Hashimato | Mitsuboshi Belting | 1 |