Showing 1–22 of 22 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Yoshiaki Hata | Minolta | 18 |
| 2 | Shigeyuki Akiba | Kokusai Denshin Denwa Co. | 8 |
| 3 | Tatsuo Masaki, deceased | Canon | 5 |
| #4 | Tokihide Ebata | Canon | 3 |
| #5 | Hiromasa Otake | Fanuc | 2 |
| #5 | Shuji Sumida | Chugai Pharmaceutical | 2 |
| #5 | Hiroyasu Miyasaka | Nichiman Co. | 2 |
| #5 | Sadao Kumasaka | Human Industry | 2 |
| #5 | Mikio Moriya | Citizen Watch Co. | 2 |
| #10 | Satoshi Imoto | Citizen Watch Co. | 1 |
| #10 | Mitsuhiro Katsuragawa | Canon | 1 |
| #10 | Hideo Yoshihara | Brother Kogyo | 1 |
| #10 | Takamitsu Tamura | Lion Group | 1 |
| #10 | Yoshimi Oshitari | — | 1 |
| #10 | Syuuji Miyama | Subaru | 1 |
| #10 | Yoshio Omura | Kureha Kagaku Kogyo | 1 |
| #10 | Haruyoshi Terada | Nihon Parkerizing Co. | 1 |
| #10 | Dai Honma | — | 1 |
| #10 | Tsunee Iizuka | Subaru | 1 |
| #10 | Yasushi Fujihira | Bridgestone | 1 |
| #10 | Youji Takeuchi | Citizen Holdings Co. | 1 |
| #10 | Shohachi Nihira | Citizen Watch Co. | 1 |