Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Toshio Akesaka | Isekikaihatsukohki | 36 |
| 2 | Ryoji Ikehata | — | 1 |
| 2 | Shouzaburo Koyama | J.S.T. Mfg. Co. | 1 |
| 2 | Takudai Matsuda | Kubota | 1 |
| 2 | Sachiko Matsumoto | Daikin Industries | 1 |
| 2 | Tadaki Sakuraba | Akita Electronics Co. | 1 |
| 2 | Masazumi Nagareda | Mitsubishi Mining | 1 |