Issued Patents All Time
Showing 26–50 of 84 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5937237 | Seal member, toner container and process cartridge | Fumito Nonaka, Shinichi Sasaki, Yoshiyuki Batori | 1999-08-10 |
| 5926672 | Photosensitive drum provided in an image forming apparatus including helical gears disposed at an end of the drum | Atsushi Nishibata, Morikazu Mizutani, Kazumi Sekine, Tadayuki Tsuda, Kazushi Watanabe +4 more | 1999-07-20 |
| 5920752 | Process cartridge including a toner frame swingably coupled with a drum frame feature and a grip feature, and an apparatus using the same | Toshiyuki Karakama, Yoshikazu Sasago, Haruhisa Oshida, Shinya Noda | 1999-07-06 |
| 5907749 | Process cartridge and image forming apparatus usable therewith | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Kazushi Watanabe, Hiroyuki Shirai +1 more | 1999-05-25 |
| 5890036 | Process cartridge, process cartridge assembly method, and image forming apparatus | Toshiyuki Karakama, Yoshikazu Sasago, Haruhisa Oshida, Shinya Noda | 1999-03-30 |
| 5864731 | Process cartridge, development apparatus, and electrophotographic image formation apparatus with plural toner feeding members | Shinichi Sasaki | 1999-01-26 |
| 5832343 | Toner supply method, toner accommodation container, process cartridge and electrophotographic image forming apparatus | Kazunori Kobayashi, Tadayuki Tsuda, Shinichi Sasaki, Toshiaki Nagashima, Hiroomi Matsuzaki +1 more | 1998-11-03 |
| 5828929 | Image forming system and process cartridge having particular arrangement of electrical contacts | Kazushi Watanabe, Kazumi Sekine, Tadayuki Tsuda, 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, Kazumi Sekine, Tadayuki Tsuda, Kazushi Watanabe, Shinya Noda +10 more | 1998-10-27 |
| 5809374 | Process cartridge including a seal member formed from a liquid-foam material | Tadayuki Tsuda, Kazumi Sekine, Kazushi Watanabe, Akira Higeta, Nobuharu Hoshi | 1998-09-15 |
| 5802433 | Toner frame, process cartridge and electrophotographic image forming apparatus | Minoru Sato | 1998-09-01 |
| 5774766 | Process cartridge, process cartridge assembly method, and electrophotographic image forming apparatus | Toshiyuki Karakama, Yoshikazu Sasago, Haruhisa Oshida, Shinya Noda | 1998-06-30 |
| 5771425 | Mechanically fastened cylindrical engaging member for use in an image forming apparatus | Yusuke Yamada, Toshiyuki Yoshihara, Tadayuki Tsuda, Mitsuru Miyamoto | 1998-06-23 |
| 5768660 | Charging device and process cartridge | Satoshi Kurihara, Kazuyoshi Odagawa, Kazumi Sekine, Shinichi Sasaki, Toshiyuki Karakama +1 more | 1998-06-16 |
| 5761584 | Process cartridge toner supply container mountable onto toner accommodating container and toner supply method | Tadayuki Tsuda, Kazuyoshi Odagawa, Atsushi Kubota, Shinichi Sasaki, Kazunori Kobayashi | 1998-06-02 |
| 5749027 | Process cartridge, process cartridge assembly method, and image forming apparatus | Yoshikazu Sasago, Haruhisa Oshida, Toshiyuki Karakama, Shinya Noda | 1998-05-05 |
| 5740499 | Image forming apparatus including process cartridge having elastic sealing members interposed between frames | Akira Higeta, Nobuharu Hoshi | 1998-04-14 |
| 5708925 | Developing agent supply container, process cartridge, and electrophotographic image forming apparatus | Kazunori Kobayashi, Kazumi Sekine, Shinichi Sasaki | 1998-01-13 |
| 5689774 | Process cartridge and image forming apparatus using such a process cartridge | Kazuo Shishido, Shinichi Sasaki, Masahiko Yashiro, Toshiyuki Karakama, Atsushi Numagami | 1997-11-18 |
| 5682587 | Developing apparatus using hollow magnet roller | Akira Higeta, Kazuyoshi Odagawa, Tadayuki Tsuda, Shinichi Sasaki | 1997-10-28 |
| 5682579 | Detachable two-frame process cartridge for an image forming apparatus | Yoshiya Nomura, Tadayuki Tsuda, Shinichi Sasaki, Kazushi Watanabe, Hiroyuki Shirai +1 more | 1997-10-28 |
| 5669042 | Image forming system having means to support at least one component of a process cartridge | Kazunori Kobayashi, Kazumi Sekine, Tadayuki Tsuda, Kazushi Watanabe, Yoshikazu Sasago +2 more | 1997-09-16 |
| 5659847 | Process cartridge having positioning member for positioning optical device | Tadayuki Tsuda, Kazumi Sekine, Kazushi Watanabe, Yoshikazu Sasago, Shinya Noda +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, Shigeo Miyabe, Shinya Noda | 1997-06-17 |
| 5623328 | Process cartridge and image forming system on which process cartridge is mountable | Tadayuki Tsuda, Kazumi Sekine, Kazushi Watanabe, Yoshikazu Sasago, Shinya Noda +9 more | 1997-04-22 |