Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4675261 | Electrophotographic process with a photoconductive screen | Katsunobu Ohara, Keiji Tanaka, Yujiro Ando | 1987-06-23 |
| 4340296 | Electrophotographic apparatus | Katsunobu Ohara, Keiji Tanaka, Yujiro Ando | 1982-07-20 |
| 4332876 | Electrophotographic screen | Katsunobu Ohara, Keiji Tanaka, Yujiro Ando | 1982-06-01 |
| 4255507 | Electrophotographic screen process | Katsunobu Ohara, Keiji Tanaka, Yujiro Ando | 1981-03-10 |