Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8036544 | Image forming apparatus and method of detecting amount of residual developer | Atsushi Toda, Satoshi Sunahara, Hideaki Hasegawa | 2011-10-11 |
| 7460798 | Image forming apparatus and method of detecting amount of residual developer | Atsushi Toda, Satoshi Sunahara, Hideaki Hasegawa | 2008-12-02 |
| 7215904 | Image forming apparatus group | Hideaki Hasegawa, Satoshi Sunahara, Atsushi Toda | 2007-05-08 |
| 6970661 | Image forming apparatus, cartridge, image formation system, and storage medium for cartridge | — | 2005-11-29 |
| 6892035 | Developing device, a process cartridge, and an electrophotographic image forming apparatus for detecting an amount of developer | Hideki Matsumoto, Kazushige Sakurai, Toshiyuki Karakama, Toru Oguma, Katsuhiro Kojima | 2005-05-10 |
| 6836639 | Cleaning apparatus having a cleaning member, a cleaning frame, and a connecting portion connecting both end surfaces of the frame | Toshiyuki Karakama, Ryuta Murakami, Tomonori Matsunaga | 2004-12-28 |
| 6661980 | Image forming apparatus and image forming system | Hideki Matsumoto, Norihito Naito | 2003-12-09 |
| 6611671 | Image forming apparatus | — | 2003-08-26 |
| 6591070 | Image forming apparatus and cartridge detachably mountable to same | Atsuya Takahashi, Hideki Matsumoto, Tomomi Kakeshita | 2003-07-08 |
| 6400918 | Cleaning device and image forming apparatus using the cleaning device | Yasuyuki Ishii, Norihisa Hoshika, Takashi Hibi | 2002-06-04 |
| 6253044 | Image forming apparatus having blade cleaning device applied thereto, and process cartridge | Takashi Hibi | 2001-06-26 |
| 5884124 | Dip sheet adhering method, cleaning device, process and image forming apparatus | Toshiyuki Karakama, Kazushi Watanabe | 1999-03-16 |
| 5835818 | Service life informing device for charged member, informing method thereof, process cartridge and image forming apparatus | Norihisa Hoshika, Takashi Hibi, Yasuyuki Ishii, Hiroaki Ogata, Eiichiro Teshima | 1998-11-10 |
| 5828928 | Process cartridge mountable in an image forming system and a method for assembling a cleaning device | Yoshikazu Sasago, Kazumi Sekine, Tadayuki Tsuda, Isao Ikemoto, Kazushi Watanabe +10 more | 1998-10-27 |
| 5819147 | Image forming apparatus using silicone resin lubricant in the developing device and cleaning device | — | 1998-10-06 |
| 5740509 | Magnet roller and developing device | Takashi Hibi, Gaku Konishi | 1998-04-14 |
| 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 |
| 5565961 | Process cartridge and image forming apparatus adapted for the mounting of the same thereto with an elastic member disposed therebetween | Yasushi Shimizu | 1996-10-15 |
| 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 |
| 5455665 | Cleaning apparatus with a member to prevent peeling of a guide member, and a process cartridge and image forming apparatus using the same | Mutsumi Baba, Toshiyuki Karakama, Kazunori Kobayashi, Toru Oguma | 1995-10-03 |
| 5383011 | Cleaning device, process cartridge incorporating the cleaning device, and image forming apparatus using the cleaning device | Atsushi Numagami, Hiroyuki Shirai | 1995-01-17 |
| 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 |
| 5204034 | Method of producing a cleaning blade with a lubricant surface | Hiroshi Sasame, Hiroyuki Adachi, Shinichi Tsukida, Masahiro Watabe, Moriyuki Yanai | 1993-04-20 |
| 5162858 | Cleaning blade and apparatus employing the same | Hiroshi Sasame, Hiroyuki Adachi, Masahiro Watabe, Noriyuki Yanai | 1992-11-10 |
| 5095335 | Copier with retractable charging unit to prevent damage to drum when removing process cartridge | Kazushi Watanabe, Takashi Hibi, Norihisa Hoshika, Masahide Kinoshita | 1992-03-10 |