Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kiyoshi Tanaka | Toyama Chemical Co. | 2 |
| 1 | Yoshihisa Watanabe | Kabushiki Kaisha Toshiba | 2 |
| 3 | Mitsuo Hanatsuka | Mitsubishi Yuka Pharmaceutical Co. | 1 |
| 3 | Masayuki Uchide | Mitsubishi Petrochemical Company Limited | 1 |
| 3 | Akira Takata | Megachips | 1 |
| 3 | Makoto Imanari | Mitsubishi Petrochemical Company Limited | 1 |