Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Harumi Aoki | Pentax | 7 |
| 2 | Shinichi Muramatsu | Yamaha | 2 |
| 2 | Sumio Sudo | Hitachi | 2 |
| 2 | Masaaki Namekawa | Citizen Holdings Co. | 2 |
| #5 | Naoyuki Maki | Aisin Seiki Kabushiki Kaisha | 1 |
| #5 | Keiichirou Wada | Nippon Steel Chemical Co. | 1 |
| #5 | Masanobu Hidaka | Fujikura | 1 |
| #5 | Akihiro Fujii | Yoshitomi Pharmaceutical Industries | 1 |
| #5 | Akemi Ohtsuki | Hitachi | 1 |