Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Masahiro Muranaka | Ntn | 10 |
| 2 | Mitsuhiro Numata | Sumitomo Metal Industries | 7 |
| 2 | Jin Tokuyasu | Kuraray Co. | 7 |
| #4 | Yoshitaka Senda | Kao | 6 |
| #5 | Yuji Kawabuchi | Honda Motor Co. | 4 |
| #6 | Kaneyoshi Oyama | Kashima Oil Co. | 3 |
| #7 | Kenji Shimoyamada | Kuraray Co. | 2 |
| #7 | Fumiaki Adachi | Shin-Etsu Chemical Co. | 2 |
| #7 | Masatsugu Takano | Shin-Etsu Chemical Co. | 2 |
| #10 | Minoru Tamaki | Petoca | 1 |
| #10 | Jun Kobori | Kao | 1 |
| #10 | Yoshihrio Shirota | Shin-Etsu Chemical Co. | 1 |