Top Inventors at Dojin Iyaku Kako Co. All Time
Showing 1–15 of 15 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Yoichi Sawayanagi | 5 |
| 2 | Hiroshi Arai | 2 |
| 2 | Hirohisa Okuyama | 2 |
| 2 | Masaaki Saito | 2 |
| 2 | Makoto Suzuki | 2 |
| 2 | Masaru Yamazaki | 2 |
| 2 | Shogo Kawabata | 2 |
| 2 | Yasuhiko Sasaki | 2 |
| 2 | Yutaka Kawamura | 2 |
| 2 | Yukihiro Matsumura | 2 |
| #11 | Hideyoshi Kanbe | 1 |
| #11 | Masunari Fushimi | 1 |
| #11 | Shuichi Kasai | 1 |
| #11 | Yoshiharu Otani | 1 |
| #11 | Akira Iwasa | 1 |