Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697021 | Sealing member featuring a compressable seal portion, and process cartridge and image forming apparatus using same | Kazushi Watanabe, Yoshikazu Sasago, Kazumi Sekine | 1997-12-09 |
| 5669042 | Image forming system having means to support at least one component of a process cartridge | Kazunori Kobayashi, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +2 more | 1997-09-16 |
| 5659847 | Process cartridge having positioning member for positioning optical device | Tadayuki Tsuda, Kazumi Sekine, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +1 more | 1997-08-19 |
| 5640650 | Process cartridge including a spaced rolling members support feature and image forming apparatus using the same | Kazushi Watanabe, Shinichi Sasaki, Isao Ikemoto, Shigeo Miyabe | 1997-06-17 |
| 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 |
| 5608509 | Process cartridge with blade member having a flat-surface side and an angled-surface side | Hiroyuki Shirai, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +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, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto +4 more | 1997-02-11 |
| 5583613 | Image forming system | Kazunori Kobayashi, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +1 more | 1996-12-10 |
| 5510878 | Process cartridge and image forming system | Kazumi Sekine, 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, Kazumi Sekine, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +2 more | 1996-01-30 |
| 5475470 | Process cartridge and image forming system on which the process cartridge is mountable using a handgrip | Yoshikazu Sasago, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +1 more | 1995-12-12 |
| 5475467 | Sealing member, and process cartridge and image forming apparatus using same | Kazushi Watanabe, Yoshikazu Sasago, Kazumi Sekine | 1995-12-12 |
| 5470635 | Blade member having a flat-surface side and an angled-surface side | Hiroyuki Shirai, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +4 more | 1995-11-28 |
| 5463446 | Rotary member a process cartridge and an assembling method for rolling members | Kazushi Watanabe, Shinichi Sasaki, Isao Ikemoto, Shigeo Miyabe | 1995-10-31 |
| 5406365 | Image forming apparatus having cleaning mechanism with partition members not aligned with convey rollers | Mutsumi Baba | 1995-04-11 |
| 5404198 | Process cartridge and image forming apparatus | Kazumi Sekine, 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, Kazumi Sekine, Isao Ikemoto, Kazushi Watanabe, Yoshikazu Sasago +2 more | 1994-07-19 |