Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Masami Naito | Denso | 2 |
| 2 | Kazushige Ueno | Kitagawa Industries Co. | 1 |
| 2 | Tomoyoshi Tai | Ngk Insulators | 1 |
| 2 | Takeshi Takami | Brother Kogyo | 1 |
| 2 | Hideharu Kawai | Kitagawa Industries Co. | 1 |
| 2 | Shin Ota | Brother Kogyo | 1 |
| 2 | Mai Nakamura | Ngk Spark Plug Co. | 1 |