Top Inventors at Koyama Co. All Time
Showing 1–14 of 14 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Hideo Tokutake | 3 |
| 1 | Tatsuo Niimura | 3 |
| 3 | Takenori Kitazawa | 2 |
| 3 | Teruyuki Oda | 2 |
| #5 | Daisuke Shinkai | 1 |
| #5 | Hiroki Shimizu | 1 |
| #5 | Hiroshi Usuda | 1 |
| #5 | Kazuo Koyama | 1 |
| #5 | Makoto Miyasaka | 1 |
| #5 | Shigeru Koyama | 1 |
| #5 | Takao Nishina | 1 |
| #5 | Tsuyoshi Nozawa | 1 |
| #5 | Yoshiro Shina | 1 |
| #5 | Yuki Tachibana | 1 |