Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoshio Kawasaki | — | 3 |
| 1 | Tatutake Horibe | Howa Machinery | 3 |
| 3 | Tohru Yamana | Murakami Kaimeido Co. | 2 |
| #4 | Shuichiro Koroku | Osaka Diamond Industrial | 1 |
| #4 | Yosio Kawasaki | Murata Kikai | 1 |
| #4 | Yukio Nezu | Ihara Chemical Industry Co. | 1 |
| #4 | Kozuichi Ikeda | Sumitomo Durez Company | 1 |
| #4 | Akinori Muranaka | Star Seimitsu Kabushiki Kaisha | 1 |
| #4 | Yuzo Yamada | Sanwa Supply Inc., Shanghai | 1 |
| #4 | Tsunezo Kawase | Osaka Diamond Industrial | 1 |
| #4 | Yukio Saeki | Sumitomo Durez Company | 1 |
| #4 | Masaharu Motoi | Freund Industrial Co. | 1 |