Showing 1–20 of 20 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Akio Arano | Clariant Finance (Bvi) Limited | 3 |
| 1 | Yoshiki Takashima | Sumitomo Chemical | 3 |
| 1 | Kooji Kagara | Fujisawa Pharmaceutical Co. | 3 |
| #4 | Hiroharu Takeshima | Sumitomo Chemical | 2 |
| #4 | Toshiro Azuma | Kanzaki Kokyukoki Mfg. Co. | 2 |
| #4 | Shozaburo Sato | — | 2 |
| #4 | Hirofumi Mishima | Sumitomo Chemical | 2 |
| #4 | Keiichi Izumi | Sumitomo Chemical | 2 |
| #4 | Izumi Fujimoto | Sumitomo Chemical | 2 |
| #10 | Takehisa Matsuda | Sanyo Chemical Industries | 1 |
| #10 | Naomi Hanioka | Astellas Pharma | 1 |
| #10 | Shigeki Kusaba | Fujitsu Limited | 1 |
| #10 | Yoshio Tarutani | Sumitomo Metal Industries | 1 |
| #10 | Naoki Yamamori | Nippon Paint Holdings Co. | 1 |
| #10 | Tomohiko Gotou | Sumitomo Chemical | 1 |
| #10 | Masayuki Ii | Takeda Pharmaceutical Company Limited | 1 |
| #10 | Seiki Hamada | — | 1 |
| #10 | Kazunori Etou | Ashimori Kogyo Kabushiki Kaisha | 1 |
| #10 | Shigeo Hozumi | Sumitomo Chemical | 1 |
| #10 | Takao Ishiwatari | Sumitomo Chemical | 1 |