Patents per Year
Top Inventors at O-Oka All Time
Showing 1–8 of 8 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Junichi Ooka | 5 |
| 1 | Mitsuhiko Shimomura | 5 |
| 3 | Mitsushige O-Oka | 2 |
| 3 | Tomoyoshi Okada | 2 |
| 3 | Yoshiki Kawasaki | 2 |
| #6 | Makoto Kimura | 1 |
| #6 | Mitsushige Ooka | 1 |
| #6 | Shinya Yamazaki | 1 |