Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoichi Hirai | Tokai Kogyo Co. | 20 |
| 2 | Juichi Awaya | Sanwa Kagaku Kenkyusho Co. | 11 |
31 patents · 2 inventors
Ranked #31,172 of 111,555 cities Top 30%
Showing 1–2 of 2 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoichi Hirai | Tokai Kogyo Co. | 20 |
| 2 | Juichi Awaya | Sanwa Kagaku Kenkyusho Co. | 11 |