Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689774 | Process cartridge and image forming apparatus using such a process cartridge | Kazuo Shishido, Shinichi Sasaki, Isao Ikemoto, Masahiko Yashiro, Toshiyuki Karakama | 1997-11-18 |
| 5652647 | Process cartridge, method for assembling process cartridge and image forming apparatus | Masahiko Yashiro, Toshiyuki Karakama | 1997-07-29 |
| 5638161 | Process cartridge, method for assembling process cartridge and image forming apparatus | Masahiko Yashiro, Toshiyuki Karakama | 1997-06-10 |
| 5619309 | Process cartridge, method for assembling process cartridge and image forming apparatus | Masahiko Yashiro, Toshiyuki Karakama | 1997-04-08 |
| 5617579 | Process cartridge, method for assembling process cartridge and image forming apparatus | Masahiko Yashiro, Shinichi Sasaki, Isao Ikemoto, Koji Miura, Toshiyuki Karakama | 1997-04-01 |