Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Koji Yamauchi | Toray Industries | 72 |
| 2 | Makoto Sugimoto | Ngk Spark Plug Co. | 50 |
| 3 | Shigeo Oi | Togo Seisakusyo | 9 |
131 patents · 3 inventors
Ranked #13,881 of 111,555 cities Top 15%
Showing 1–3 of 3 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Koji Yamauchi | Toray Industries | 72 |
| 2 | Makoto Sugimoto | Ngk Spark Plug Co. | 50 |
| 3 | Shigeo Oi | Togo Seisakusyo | 9 |