Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Fumio Shimada | Canon | 6 |
| 2 | Takehiko Ohniwa | Canon | 4 |
| 3 | Takashi Udagawa | Showa Denko K.K. | 1 |
| 3 | Giichi Sudoh | Chichibu Cement Co. | 1 |
| 3 | Naoto ISHIBASHI | Showa Denko K.K. | 1 |
| 3 | Taketoshi Tomita | Sintokogio | 1 |
| 3 | Shigehiro Kato | Canon | 1 |