Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666192 | Charging member and image forming apparatus | Yasushi Sato, Harumi Ishiyama, Tadashi Furuya | 1997-09-09 |
| 5659852 | Image forming method, image forming apparatus and process cartridge | Yasunori Chigono, Harumi Ishiyama, Tadashi Furuya | 1997-08-19 |