Top Inventors at Koyo Giken All Time
Showing 1–9 of 9 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Tadanobu Yamashita | 4 |
| 2 | Kazuki Houzan | 2 |
| 2 | Yoshinobu Yamashita | 2 |
| #4 | Kazuhiro Suzuki | 1 |
| #4 | Koji Kai | 1 |
| #4 | Kouji Kai | 1 |
| #4 | Mitoshi KAI | 1 |
| #4 | Tuyosi Shinozaki | 1 |
| #4 | Akira Nagai | 1 |