Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604068 | Electronograph developing agent and method of manufacturing the same | Etsuko Miyamoto, Hiroshi Murata | 1997-02-18 |
| 5035973 | Image forming method and apparatus therefor | — | 1991-07-30 |
| 4785324 | Electrophotographic apparatus and method for preventing the lowering of a charging voltage at a photoreceptor | Mutsuki Yamazaki | 1988-11-15 |
| 4641168 | Light sensitive semiconductor device for holding electrical charge therein | Mutsuki Yamazaki | 1987-02-03 |