Top Inventors at Toho Catalyst Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Motoki Hosaka | 3 |
| 2 | Kunihiko Tashino | 2 |
| 3 | Maki Sato | 2 |
| #4 | Hayashi Ogawa | 1 |
| #5 | Hiroyuki Kono | 1 |
| #6 | Hiroshi Sato | 1 |
| #7 | Hideo Tsukamoto | 1 |
| #8 | Hidetoshi Umebayashi | 1 |
| #9 | Makoto Nakano | 1 |
| #10 | Motozo Yoshikiyo | 1 |
| #11 | Satoru Chosa | 1 |