Showing 1–22 of 22 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoshiaki Hata | Minolta | 4 |
| 2 | Yoichi Nagata | Citizen Watch Co. | 2 |
| 2 | Tsutomu Ikehata | Citizen Watch Co. | 2 |
| 2 | Yoshiyuki Inaguma | Kureha Kagaku Kogyo K.K. | 2 |
| #5 | Yasuo Nakayama | Otsuka Pharmaceutical Co. | 1 |
| #5 | Nobuyuki Uehara | Citizen Watch Co. | 1 |
| #5 | Atsushi Shigemura | Casio Computer Co. | 1 |
| #5 | Takashi Ihara | Citizen Holdings Co. | 1 |
| #5 | Ikuro Honda | Nihon Tokushu Noyaku Seizo K.K. | 1 |
| #5 | Masamitsu Nojima | Citizen Watch Co. | 1 |
| #5 | Toshiaki Endoh | Kokusai Denshin Denwa Co. | 1 |
| #5 | Takeo Mutou | Citizen Watch Co. | 1 |
| #5 | Takeo Muto | Citizen Watch Co. | 1 |
| #5 | Seiji Kikuta | Kao | 1 |
| #5 | Naoto Gambo | Ricoh Company | 1 |
| #5 | Kiyohito Nagasawa | Citizen Watch Co. | 1 |
| #5 | Yurie Udo | Citizen Watch Co. | 1 |
| #5 | Mitsunari Asao | Ntn | 1 |
| #5 | Seiichi Domyo | Hitachi | 1 |
| #5 | Katsumi Hagiwara | Smc | 1 |
| #5 | Masahiro Sase | Citizen Watch Co. | 1 |
| #5 | Kiwamu Imai | Ishikawajima-Harima Jukogyo | 1 |