Showing 1–16 of 16 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Takaharu Kozawa | Denso | 3 |
| 1 | Naoya Takase | Ngk Insulators | 3 |
| 3 | Fumio WANI | Kawasaki | 1 |
| 3 | Tatsuji ISHIDA | Oji Holdings | 1 |
| 3 | Tadakazu Ishiwata | Oji Holdings | 1 |
| 3 | Takumi Moro | Kasai Kogyo Co. | 1 |
| 3 | Masayuki Sumita | Murata Manufacturing Co. | 1 |
| 3 | Yoshihiko Sakurai | Diesel Kiki Co. | 1 |
| 3 | Hideki Uematsu | Ngk Spark Plug Co. | 1 |
| 3 | Tatsuo Nakaya | Zexel Gmbh | 1 |
| 3 | Ko Yoshida | Denso | 1 |
| 3 | Toshiki Motoyama | Brother Kogyo | 1 |
| 3 | Ai Igarashi | Ngk Spark Plug Co. | 1 |
| 3 | Keiji Ozeki | Ngk Spark Plug Co. | 1 |
| 3 | Kazuhiro Kobayashi | Nissin Food Products Co. | 1 |
| 3 | Takahiro Miwa | Brother Kogyo | 1 |