Showing 1–25 of 25 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Takaharu Kozawa | Denso | 11 |
| 2 | Akihito Kobayashi | Brother Kogyo | 8 |
| 3 | Naoya Takase | Ngk Insulators | 4 |
| 3 | Daisuke Kawase | Denso Wave Incorporated | 4 |
| 3 | Fumihiko Kishima | Toyota | 4 |
| #6 | Masaya Ueda | Kobe Steel | 3 |
| #6 | Ai Igarashi | Ngk Spark Plug Co. | 3 |
| #6 | Satoshi Yano | Mita Industrial Co. | 3 |
| #9 | Tadakazu Ishiwata | Oji Holdings | 2 |
| #9 | Norihito Akanuma | Nsk | 2 |
| #9 | Toshiaki Kurahashi | Ngk Spark Plug Co. | 2 |
| #9 | Hideki Uematsu | Ngk Spark Plug Co. | 2 |
| #13 | Tatsuji ISHIDA | Oji Holdings | 1 |
| #13 | Katsuzo Kamada | Tsubakimoto Kogyo Co. | 1 |
| #13 | Kazushi Shumiya | Brother Kogyo | 1 |
| #13 | Naoto Ozeki | Brother Kogyo | 1 |
| #13 | Yuichi Shishido | Oji Holdings | 1 |
| #13 | Hiroshi Tabeta | Hitachi Construction Machinery Co. | 1 |
| #13 | Kiyoyuki Uchida | Toyota | 1 |
| #13 | Keiji Ozeki | Ngk Spark Plug Co. | 1 |
| #13 | Yasuyo Nishimura | Kuraray Co. | 1 |
| #13 | Yutaka Ichihara | Nikon | 1 |
| #13 | Yuki Okazaki | Gunze Limited | 1 |
| #13 | Tomohiro Wakazono | Ngk Spark Plug Co. | 1 |
| #13 | Toshiki Motoyama | Brother Kogyo | 1 |