Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yasuo Suzuki | Ricoh Company | 10 |
| 2 | Takashi Koide | Sumitomo Wiring Systems | 6 |
| 3 | Hiroshi Usui | Sanken Electric Co. | 5 |
| #4 | Toshinori Tanase | Toyoda Gosei Co. | 4 |
| #5 | Yasuhisa Kuzuya | Ngk Spark Plug Co. | 3 |
| #6 | Shinji Kawai | Mitsubishi Electric | 2 |
| #7 | Keisuke Makino | Ngk Spark Plug Co. | 1 |
| #7 | Tomohide Aoki | Toyoda Gosei Co. | 1 |
| #7 | Naoomi Miyakawa | Yamazaki Mazak | 1 |
| #7 | Nobuaki Matsunami | Pilot Ink Company, Limited | 1 |
| #7 | Shunji Mori | Hitachi | 1 |
| #7 | Eiji Kodera | Ngk Spark Plug Co. | 1 |