Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4675261 | Electrophotographic process with a photoconductive screen | Keiji Tanaka, Yujiro Ando, Inao Moriyama | 1987-06-23 |
| 4340296 | Electrophotographic apparatus | Keiji Tanaka, Yujiro Ando, Inao Moriyama | 1982-07-20 |
| 4332876 | Electrophotographic screen | Keiji Tanaka, Yujiro Ando, Inao Moriyama | 1982-06-01 |
| 4284697 | Image formation method | Yujiro Ando, Yukimasa Shinohara | 1981-08-18 |
| 4265531 | Electrophotography | Nobutoshi Yoshida | 1981-05-05 |
| 4255507 | Electrophotographic screen process | Keiji Tanaka, Yujiro Ando, Inao Moriyama | 1981-03-10 |
| 4248951 | Method of image formation with a screen element and charging means | Yujiro Ando | 1981-02-03 |