Top Inventors at Sumikin Chemical Co. All Time
Showing 1–30 of 30 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Ikuo Ito | 6 |
| 1 | Toshio Sato | 6 |
| 3 | Kazuhiko Maeda | 3 |
| 3 | Keiichi Yokota | 3 |
| 3 | Kyoichi Takeda | 3 |
| #6 | Haruyuki Kano | 2 |
| #6 | Kazuki Sugiura | 2 |
| #6 | Takeshi Namekata | 2 |
| #6 | Teruaki Yamada | 2 |
| #6 | Yoshihisa Sone | 2 |
| #11 | Hiroichi Kouyama | 1 |
| #11 | Hiromichi Yamaguchi | 1 |
| #11 | Katsuyuki Ohshima | 1 |
| #11 | Katsumi Satoh | 1 |
| #11 | Kenji Kageyama | 1 |
| #11 | Koji Tabata | 1 |
| #11 | Kouichi Yoshimura | 1 |
| #11 | Michio Tsuyuguchi | 1 |
| #11 | Ryohei Minami | 1 |
| #11 | Seiji Takeuchi | 1 |
| #11 | Sugio Otani | 1 |
| #11 | Takashiro Muroi | 1 |
| #11 | Tohru Iwahashi | 1 |
| #11 | Toshiaki Mabuchi | 1 |
| #11 | Yoshihiko Sunami | 1 |
| #11 | Yukio Nagao | 1 |
| #11 | Yoshiji Doko | 1 |
| #11 | Kenichi Iwaguro | 1 |
| #11 | Toshihiko Kashitani | 1 |
| #11 | Akihiko Nemoto | 1 |