Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Takatoshi Okumura | Nippon Gakki Seizo | 3 |
| 2 | Isao Matsumura | Canon | 2 |
| 3 | Hiroshi Umehara | Fuji Chemical Industries Co. | 1 |
| 3 | Akira Naoi | Sharp Kabushiki Kaisha | 1 |
| 3 | Hajime Nagahashi | Sharp Kabushiki Kaisha | 1 |
| 3 | Hidetomo Takase | Toshiba | 1 |
| 3 | Minoru Aoki | Ricoh Company | 1 |