Issued Patents 1997
Showing 1–7 of 7 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, Atsushi Numagami | 1997-11-18 |
| 5682579 | Detachable two-frame process cartridge for an image forming apparatus | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Isao Ikemoto, Kazushi Watanabe +1 more | 1997-10-28 |
| 5652647 | Process cartridge, method for assembling process cartridge and image forming apparatus | Masahiko Yashiro, Atsushi Numagami | 1997-07-29 |
| 5638161 | Process cartridge, method for assembling process cartridge and image forming apparatus | Atsushi Numagami, Masahiko Yashiro | 1997-06-10 |
| 5623328 | Process cartridge and image forming system on which process cartridge is mountable | Tadayuki Tsuda, Kazumi Sekine, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +9 more | 1997-04-22 |
| 5619309 | Process cartridge, method for assembling process cartridge and image forming apparatus | Masahiko Yashiro, Atsushi Numagami | 1997-04-08 |
| 5617579 | Process cartridge, method for assembling process cartridge and image forming apparatus | Masahiko Yashiro, Shinichi Sasaki, Isao Ikemoto, Koji Miura, Atsushi Numagami | 1997-04-01 |