Showing 1–15 of 15 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ken Yanagisawa | Yugen Kaisha Sozoan | 6 |
| 2 | Michiya Nakamura | Atsugi Unisia | 3 |
| 2 | Kazumasa Yokoyama | Green Cross | 3 |
| 2 | Nobuo Sugiyama | Seiko Epson | 3 |
| 2 | Yoshihide Kiyosawa | Harmonic Drive Systems | 3 |
| #6 | Satoshi Fujioka | Seiko Epson | 2 |
| #7 | Tetsuo Terashima | Seiko Epson | 1 |
| #7 | Hiromu Miyazawa | Seiko Epson | 1 |
| #7 | Kazuhiro Tsuchiya | Seiko Epson | 1 |
| #7 | Hiroshi Shirotori | Seiko Epson | 1 |
| #7 | Yasushi Yamazaki | Seiko Epson | 1 |
| #7 | Seiji Ihara | Seiko Epson | 1 |
| #7 | Masayuki Takagi | Seiko Epson | 1 |
| #7 | Junichi Ohki | Jidosha Kiki Co. | 1 |
| #7 | Osamu Kinoshita | Kabushiki Kaisha Toshiba | 1 |