Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Toshiei Ataka | Kyowa Gas Chemical Industry Co. | 3 |
| 2 | Michio Chatani | Kyowa Gas Chemical Industry Co. | 2 |
| 2 | Akira Nakamura | Kyowa Gas Chemical Industry Co. | 2 |
| 2 | Takamaro Miura | Kyowa Gas Chemical Industry Co. | 2 |
| #5 | Nobuyuki Kawauchi | Hitachi | 1 |
| #5 | Fumito Yamamoto | Kuraray Co. | 1 |
| #5 | Hirozo Segawa | Kyowa Gas Chemical Industry Co. | 1 |
| #5 | Naoki Ohsumi | Nippon Valqua Industries | 1 |