Showing 1–12 of 12 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Akinori Yasutake | Mitsubishi Electric | 24 |
| 2 | Satoru Serizawa | Mitsubishi Mining | 10 |
| 3 | Takijiro Shimamoto | Mitsubishi Electric | 7 |
| #4 | Kaoru Nishimura | Kimoto Co. | 5 |
| #5 | Azusa Ujihara | Daikin Industries | 3 |
| #5 | Tetsurou Takaoka | Sumitomo Electric Industries | 3 |
| #7 | Tetsuo Horie | Ishikawajima-Harima Heavy Industries Co. | 2 |
| #7 | Shuichiro Matsumoto | Giner | 2 |
| #9 | Yasuyuki Maehara | Mitsubishi Mining | 1 |
| #9 | Kitoshi Hashimoto | Mitsubishi Mining | 1 |
| #9 | Katsumi Kawaichi | Mitsubishi Mining | 1 |
| #9 | Tomoaki Iyoku | Mitsubishi Mining | 1 |