Patents per Year
Top Inventors at Yamazen All Time
Showing 1–7 of 7 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Kihachiro Okura | 4 |
| 2 | Kihachiro Ohkura | 2 |
| 3 | Kazuo Nakatani | 1 |
| 3 | Koji Ueda | 1 |
| 3 | Kunihiko Fujii | 1 |
| 3 | Shigeo Mukai | 1 |
| 3 | Yoshihiro Yamada | 1 |
Showing 1–7 of 7 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Kihachiro Okura | 4 |
| 2 | Kihachiro Ohkura | 2 |
| 3 | Kazuo Nakatani | 1 |
| 3 | Koji Ueda | 1 |
| 3 | Kunihiko Fujii | 1 |
| 3 | Shigeo Mukai | 1 |
| 3 | Yoshihiro Yamada | 1 |