Top Inventors at Katayama Chemical Works Co., Ktd. All Time
Showing 1–19 of 19 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Sakae Katayama | 12 |
| 2 | Osamu Umekawa | 6 |
| 3 | Atsushi Tsuda | 3 |
| 3 | Kenzi Hanno | 3 |
| 3 | Yoshinari Kawasaki | 3 |
| #6 | Tadahiko Asano | 2 |
| #7 | Hirohiko Katayama | 1 |
| #7 | Kazuo Marugame | 1 |
| #7 | Kenji Hanno | 1 |
| #7 | Keisyo Nakanishi | 1 |
| #7 | Masato Magami | 1 |
| #7 | Masatsune Okuma | 1 |
| #7 | Michio Konno | 1 |
| #7 | Sadaoki Kanada | 1 |
| #7 | Toshihiko Mukai | 1 |
| #7 | Toshio Sato | 1 |
| #7 | Yasutaka Arimoto | 1 |
| #7 | Yosuke Ito | 1 |
| #7 | Akira Yamamoto | 1 |