Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hiroshi Sakashita | Sankyo Seiki Seisakusho | 4 |
| 1 | Koichi Katakura | Sankyo Seiki Seisakusho | 4 |
| 3 | Eiji Arasaki | Sankyo Seiki Seisakusho | 3 |
| #4 | Mitsuo Minagawa | — | 2 |
| #4 | Osamu Minagawa | — | 2 |
| #6 | Isao Ushikoshi | Sankyo Seiki Seisakusho | 1 |
| #6 | Yoshihiro Kobayashi | Seiko Epson | 1 |
| #6 | Koji Fukuyama | Nagano Nidec | 1 |
| #6 | Hisaya Nakagawa | Sankyo Seiki Mfg. Co. | 1 |
| #6 | Norikazu Oguchi | Nidec | 1 |
| #6 | Isao Uchikoshi | — | 1 |
| #6 | Kunio Shimazu | Sankyo Seiki Seisakusho | 1 |