Showing 1–11 of 11 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kazumasa Yokoyama | Green Cross | 8 |
| 2 | Kazuo Shimizu | Kissei Pharmaceutical Co. | 2 |
| 2 | Junichi Ohki | Jidosha Kiki Co. | 2 |
| 2 | Isao Nomura | Mitsubishi Gas Chemical Company | 2 |
| #5 | Masayuki Takagi | Seiko Epson | 1 |
| #5 | Yasuyuki Matsumoto | Fanuc | 1 |
| #5 | Michiya Nakamura | Atsugi Unisia | 1 |
| #5 | Nobuo Hasegawa | Sumitomo Electric Industries | 1 |
| #5 | Kazuhiro Tsuchiya | Seiko Epson | 1 |
| #5 | Osamu Kinoshita | Kabushiki Kaisha Toshiba | 1 |
| #5 | Michihiro Kobayashi | Kissei Pharmaceutical Co. | 1 |