Top Inventors at Opton Co. All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Teruaki Yogo | 23 |
| 2 | Takuya Kanamori | 3 |
| 3 | Toshihiro KANI | 3 |
| #4 | Haining LU | 2 |
| #5 | Hidenori Ozaki | 2 |
| #6 | Takayuki Yamada | 2 |
| #7 | Arthur J. Sable | 2 |
| #8 | Hiroyuki Oya | 1 |
| #9 | Hideyuki Tanaka | 1 |
| #10 | John M. Fitts | 1 |
| #11 | Sadayoshi Ozeki | 1 |
| #12 | Toruaki Yogo | 1 |