Showing 1–14 of 14 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Tadayoshi Nagaoka | Nagaoka International | 4 |
| 2 | Kohji Kawabata | Fujisawa Pharmaceutical Co. | 2 |
| 2 | Yasumasa Akazawa | — | 2 |
| 2 | Toshihito Kido | Minolta Co. | 2 |
| #5 | Noriko Higuchi | Takeda Chemical Industries | 1 |
| #5 | Yuzo Kouno | Ricoh Company | 1 |
| #5 | Kazutoshi Okamoto | Kubota | 1 |
| #5 | Sadahide Yano | Yugen Kaisha Yano Engineering | 1 |
| #5 | Yoshihiro Fujisaki | Sumitomo Electric Industries | 1 |
| #5 | Yoshio Tani | Fujitsu Limited | 1 |
| #5 | Shigeru Kita | Honda Motor Co. | 1 |
| #5 | Masao Fukunaga | Hitachi | 1 |
| #5 | Eiko Furumoto | Fuji Oil Holdings | 1 |
| #5 | Masami Kanai | — | 1 |