Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Nobuyuki Hotta | Ngk Spark Plug Co. | 2 |
| 2 | Kazuhito Misumi | Brother Kogyo | 1 |
| 2 | Go Hanzawa | Ngk Spark Plug Co. | 1 |
| 2 | Tetsuya Hattori | Sumitomo Electric Industries | 1 |
| 2 | Fumikazu Sato | Brother Kogyo | 1 |
| 2 | Masashi Kato | Toyota | 1 |
| 2 | Naoki Otsuka | Brother Kogyo | 1 |