Showing 1–17 of 17 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Katsutoshi Nishizaki | Koyo Seiko Co. | 8 |
| 2 | Ryouhei Hayama | Jtekt | 6 |
| 3 | Naosumi Tada | Borg-Warner Automotive K.K. | 5 |
| #4 | Masaichi Kikuchi | Unknown | 1 |
| #4 | Yoshitomo Tokumoto | Koyo Seiko Co. | 1 |
| #4 | Kozaburo Yano | Sharp Kabushiki Kaisha | 1 |
| #4 | Mitsuo Morita | Kimura Kohki Co. | 1 |
| #4 | Kohichi Fujimori | Sharp Kabushiki Kaisha | 1 |
| #4 | Akira Sasakura | Sharp Kabushiki Kaisha | 1 |
| #4 | Todomu Nishino | Nitta Moore | 1 |
| #4 | Masaji Asamoto | — | 1 |
| #4 | Kenichiro Igeta | Japan Servo Co. | 1 |
| #4 | Hideyuki Takenaka | Shionogi & Co. | 1 |
| #4 | Akashi Nakatsu | Nitta Moore | 1 |
| #4 | Koji Higashimoto | Shin-Kobe Electric Machinery Co. | 1 |
| #4 | Kazuyuki Motowaki | Sharp Kabushiki Kaisha | 1 |
| #4 | Toshiki Kurumada | Rohto Pharmaceutical Co. | 1 |