Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Kenko Ujihara | Mazda Motor | 4 |
| 2 | Masanori Sasaki | Mazda Motor | 2 |
| 2 | Hironaga Akita | Kureha | 2 |
| 2 | Yuusuke Nakamichi | Kureha | 2 |
| #5 | Shuichi Nakagami | Mazda Motor | 1 |
| #5 | Masakazu Tsuji | Mazda Motor | 1 |
| #5 | Suguru Hirokawa | Eaton | 1 |