Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6856775 | REMANUFACTURING METHOD FOR A PROCESS CARTRIDGE AND PROCESS CARTRIDGE HAVING A DRUM, A DRUM FRAME, A DEVELOPING FRAME, A DEVELOPER FRAME, SIDE COVERS, AN IMAGE TRANSFER OPENING, AND A DRUM SUPPORTING SHAFT | — | 2005-02-15 |
| 6788908 | Process cartridge remanufacturing method, disassembling method and assembling method, positioning and connecting apparatus and process cartridge | — | 2004-09-07 |
| 6009289 | Process cartridge, developer container, waste developer container, method for assembling process cartridge, method for replenishing developer in process cartridge | Shinichi Sasaki | 1999-12-28 |
| 5926672 | Photosensitive drum provided in an image forming apparatus including helical gears disposed at an end of the drum | Atsushi Nishibata, Morikazu Mizutani, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +4 more | 1999-07-20 |
| 5828929 | Image forming system and process cartridge having particular arrangement of electrical contacts | Kazushi Watanabe, Tadayuki Tsuda, Isao Ikemoto, Yoshimasu Yamaguchi, Yoshikazu Sasago +2 more | 1998-10-27 |
| 5828928 | Process cartridge mountable in an image forming system and a method for assembling a cleaning device | Yoshikazu Sasago, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Shinya Noda +10 more | 1998-10-27 |
| 5809374 | Process cartridge including a seal member formed from a liquid-foam material | Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Akira Higeta, Nobuharu Hoshi | 1998-09-15 |
| 5768660 | Charging device and process cartridge | Satoshi Kurihara, Kazuyoshi Odagawa, Shinichi Sasaki, Isao Ikemoto, Toshiyuki Karakama +1 more | 1998-06-16 |
| 5708925 | Developing agent supply container, process cartridge, and electrophotographic image forming apparatus | Kazunori Kobayashi, Shinichi Sasaki, Isao Ikemoto | 1998-01-13 |
| 5697021 | Sealing member featuring a compressable seal portion, and process cartridge and image forming apparatus using same | Kazushi Watanabe, Yoshikazu Sasago, Shinya Noda | 1997-12-09 |
| 5669042 | Image forming system having means to support at least one component of a process cartridge | Kazunori Kobayashi, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +2 more | 1997-09-16 |
| 5659847 | Process cartridge having positioning member for positioning optical device | Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago, Shinya Noda +1 more | 1997-08-19 |
| 5650820 | Hand recording apparatus and movement guide therefor | Noboru Koumura, Toshiaki Harada, Ryozo Yanagisawa | 1997-07-22 |
| 5623328 | Process cartridge and image forming system on which process cartridge is mountable | Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago, Shinya Noda +9 more | 1997-04-22 |
| 5608509 | Process cartridge with blade member having a flat-surface side and an angled-surface side | Hiroyuki Shirai, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +4 more | 1997-03-04 |
| 5602623 | Photosensitive drum provided in an image forming apparatus including gears disposed at an end of drum | Atsushi Nishibata, Morikazu Mizutani, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +4 more | 1997-02-11 |
| 5583613 | Image forming system | Kazunori Kobayashi, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +1 more | 1996-12-10 |
| 5537187 | Process cartridge having a frame connecting member with a guide portion, and image forming apparatus using same | — | 1996-07-16 |
| 5510878 | Process cartridge and image forming system | Shinya Noda, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +2 more | 1996-04-23 |
| 5488459 | Image bearing member having an asymmetrically weighted base, process cartridge and image forming apparatus | Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago, Yasushi Shimizu +2 more | 1996-01-30 |
| 5475467 | Sealing member, and process cartridge and image forming apparatus using same | Kazushi Watanabe, Yoshikazu Sasago, Shinya Noda | 1995-12-12 |
| 5475470 | Process cartridge and image forming system on which the process cartridge is mountable using a handgrip | Yoshikazu Sasago, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Shinya Noda +1 more | 1995-12-12 |
| 5470635 | Blade member having a flat-surface side and an angled-surface side | Hiroyuki Shirai, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +4 more | 1995-11-28 |
| 5404198 | Process cartridge and image forming apparatus | Shinya Noda, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +2 more | 1995-04-04 |
| 5331372 | Process cartridge and image forming apparatus on which process cartridge is mountable | Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago, Shinya Noda +2 more | 1994-07-19 |