Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Hisashi Doori | Yoshida Kogyo K.K. | 3 |
| 2 | Shunji Akashi | Yoshida Kogyo K.K. | 2 |
| 3 | Toshimitsu Inaba | Unknown | 1 |
| 3 | Yasumasa Ooura | Yoshida Kogyo K.K. | 1 |
| 3 | Mitsuo Horikawa | Yoshida Kogyo K.K. | 1 |
| 3 | Kazuo Kirii | Yoshida Kogyo K.K. | 1 |
| 3 | Shigeyuki Oodera | Yoshida Kogyo K.K. | 1 |