Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yasuyuki Furuta | Ngk Insulators | 2 |
| 2 | Masayuki Segawa | Ngk Spark Plug Co. | 1 |
| 2 | Tetsuya Hattori | Sumitomo Electric Industries | 1 |
| 2 | Naoki Otsuka | Brother Kogyo | 1 |
| 2 | Masashi Kato | Toyota | 1 |
| 2 | Nobuyuki Hotta | Ngk Spark Plug Co. | 1 |