Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hidaka Furuya | Nippon Light Metal Company | 4 |
| 2 | Tomoyoshi Tai | Ngk Insulators | 3 |
| 3 | Masami Naito | Denso | 2 |
| #4 | Kazumitsu Mizushima | Nippon Light Metal Company | 1 |
| #4 | Hideharu Kawai | Kitagawa Industries Co. | 1 |
| #4 | Kenichi Ikegami | Jtekt | 1 |