Showing 1–19 of 19 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Masaaki Tanaka | Mazda Motor | 135 |
| 2 | Yoshiki Ishikawa | Toyota | 22 |
| 3 | Oji Kuno | Toyota | 20 |
| #4 | Arata Sato | Toyota | 18 |
| #4 | Naoya Take | Toyota | 18 |
| #6 | Shinji Oita | Toyota | 17 |
| #7 | Kentaro Adachi | Toray Industries | 16 |
| #8 | Yoshiaki Yamakawa | Aisin Seiki Kabushiki Kaisha | 12 |
| #9 | Ryousuke Mizuno | Aisin Seiki Kabushiki Kaisha | 11 |
| #10 | Toshiya Miyashita | Toyota | 10 |
| #10 | Kenjiro Yamada | Toyota | 10 |
| #12 | Teiji Okuyama | Aisin Seiki Kabushiki Kaisha | 8 |
| #12 | Yasuyuki Hihara | Toyota | 8 |
| #14 | Kanichi Saito | Toyota | 7 |
| #15 | Yutaka Inuzuka | Toyota | 6 |
| #15 | Yasuo Imatomi | Aisin Seiki Kabushiki Kaisha | 6 |
| #17 | Yoshimasa Ishiguro | Aisin Seiki Kabushiki Kaisha | 5 |
| #18 | Yuta Ikehata | Toyota | 3 |
| #19 | Ryo Omata | Jtekt | 2 |
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