Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yuji Hashimoto | Toyota Industries | 3 |
| 2 | Mikitoshi Hiraga | Sintobrator | 1 |
| 2 | Yoshihiro Nakamura | Ngk Spark Plug Co. | 1 |
| 2 | Sadao Kokubu | Mitsubishi Electric | 1 |
| 2 | Tetsumi Ichioka | Toyoda Gosei Co. | 1 |