Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9632446 | Charging member, process cartridge, and electrophotographic image forming apparatus | Noboru Miyagawa | 2017-04-25 |
| 9607922 | Semiconductor device and heat-dissipating mechanism | Kenji Matsuda, Dai Shinozaki, Yuichi Makita, Hitoshi Kubo, Yusuke Ohshima +1 more | 2017-03-28 |
| 9411307 | Process cartridge and electrophotographic apparatus | Daisuke Tanaka, Atsushi Uematsu | 2016-08-09 |
| 8980423 | Charging member, process for its production, process cartridge | Tomohito Taniguchi, Takumi Furukawa, Yusuke Yagisawa | 2015-03-17 |
| 8383234 | Charging member, process cartridge, and electrophotographic apparatus | Hiroshi Mayuzumi, Tomohito Taniguchi, Nozomu Takahata, Yusuke Yagisawa, Satoshi Koide +1 more | 2013-02-26 |
| 7979004 | Electrophotographic belt, production method of electrophotographic belt, and electrophotographic apparatus | Atsushi Tanaka, Takashi Kusaba, Yuji Sakurai, Akihiko Nakazawa | 2011-07-12 |
| 7835669 | Charging roller, process cartridge and electrophotographic apparatus | Takumi Furukawa, Tomohito Taniguchi, Yusuke Yagisawa | 2010-11-16 |
| 7352984 | Electrophotographic endless belt, electrophotographic apparatus having electrophotographic endless belt, and process for producing electrophotographic endless belt | Akihiko Nakazawa, Atsushi Tanaka, Takashi Kusaba, Yuji Sakurai | 2008-04-01 |
| 7208211 | Electrophotographic belt member, process for producing electrophotographic belt member, and electrophotographic apparatus | Atsushi Tanaka, Akihiko Nakazawa, Tsunenori Ashibe, Takashi Kusaba | 2007-04-24 |
| 7201967 | Electrophotographic endless belt, process for producing electrophotographic endless belt, and electrophotographic apparatus | Yuji Sakurai, Akihiko Nakazawa, Atsushi Tanaka, Takashi Kusaba | 2007-04-10 |
| 6928256 | Electrophotographic endless belt, process cartridge, and electrophotographic apparatus | Akihiko Nakazawa, Atsushi Tanaka, Tsunenori Ashibe, Takashi Kusaba | 2005-08-09 |
| 6920299 | Image forming apparatus and intermediate transfer unit detachably mountable thereon | Masaru Shimura, Tatsuya Kobayashi, Takashi Shibuya, Seiji Saito | 2005-07-19 |
| 6856776 | Endless belt comprising a meandering-prevention member, and a process cartridge and an electrophotographic apparatus using such an endless belt | Hiroyuki Kobayashi, Akihiko Nakazwa, Atsushi Tanaka, Tsunenori Ashibe, Takashi Kusaba +2 more | 2005-02-15 |
| 6852400 | Endless belt electrophotography, process for producing the endless belt, and image forming apparatus having the endless belt | Akihiko Nakazawa, Hiroyuki Kobayashi, Minoru Shimojo, Akira Shimada, Atsushi Tanaka +2 more | 2005-02-08 |
| 6853824 | Electrophotographic endless belt comprising meandering-preventive member, and process cartridge and electrophotographic apparatus having such an endless belt | Ryota Kashiwabara, Hiroyuki Kobayashi, Akihiko Nakazawa, Atsushi Tanaka, Tsunenori Ashibe +2 more | 2005-02-08 |
| 6795667 | Process cartridge and electrophotographic apparatus having an intermediate transfer belt | Akihiko Nakazawa, Hiroyuki Kobayashi, Atsushi Tanaka, Tsunenori Ashibe, Takashi Kusaba +1 more | 2004-09-21 |
| 6775494 | Process cartridge, image forming apparatus and intermediate transfer belt | Takashi Kusaba, Hiroyuki Kobayashi, Akihiko Nakazawa, Atsushi Tanaka, Tsunenori Ashibe | 2004-08-10 |
| 6766127 | Image forming apparatus having process cartridge with intermediate transfer belt | Atsushi Tanaka, Hiroyuki Kobayashi, Akihiko Nakazawa, Tsunenori Ashibe, Takashi Kusaba +1 more | 2004-07-20 |
| 6737133 | Electrophotographic seamless belt, and electrophotographic apparatus having the electrophotographic seamless belt | Takashi Kusaba, Akihiko Nakazawa, Akira Shimada, Atsushi Tanaka, Tsunenori Ashibe | 2004-05-18 |
| 6725002 | Process cartridge, electrophotographic apparatus and image forming method | Yuji Sakurai, Hiroyuki Kobayashi, Akihiko Nakazawa, Atsushi Tanaka, Tsunenori Ashibe +1 more | 2004-04-20 |
| 6674989 | Endless belt with serpentine motion preventing member and image forming apparatus including same | Takashi Kusaba, Akihiko Nakazawa, Akira Shimada, Tsunenori Ashibe | 2004-01-06 |
| 6615015 | Process cartridge, electrophotographic apparatus and image-forming method | Akihiko Nakazawa, Hiroyuki Kobayashi, Atsushi Tanaka, Tsunenori Ashibe, Takashi Kusaba | 2003-09-02 |
| 6600893 | Transfer member, process for producing transfer member, and image forming apparatus having transfer member | Tsunenori Ashibe, Hiroyuki Kobayashi, Akihiko Nakazawa, Atsushi Tanaka, Takashi Kusaba | 2003-07-29 |
| 6592803 | Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship | Akihiko Nakazawa, Hiroyuki Kobayashi, Minoru Shimojo, Akira Shimada, Atsushi Tanaka +2 more | 2003-07-15 |
| 6487387 | Full-color image forming apparatus with belt-shaped transfer member | Takashi Kusaba, Akihiko Nakazawa, Akira Shimada, Atsushi Tanaka, Tsunenori Ashibe | 2002-11-26 |