Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312119 | Feeding device and image forming apparatus | Kazune NAKAMURA, Yosuke Eguchi | 2025-05-27 |
| 10514651 | Cleaning blade, cleaning device, image forming apparatus, and process cartridge | Kazuhiko Watanabe, Hiroshi Nakai, Tomoyuki Kirigane, Yasuhide Nakazawa | 2019-12-24 |
| 10018941 | Cleaning device, and image forming apparatus and process unit incorporating same | Daisuke Tomita, Takeshi Shintani, Yasuhiro Maehata, Yasuhito Kuboshima, Yuta Azeyanagi | 2018-07-10 |
| 9983512 | Toner conveyance device and image forming apparatus | Yusuke Ishizuka, Takeshi Shintani, Yasuhiro Maehata, Daisuke Tomita, Yuta Azeyanagi +1 more | 2018-05-29 |
| 9753426 | Image bearer protective agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge | Kenji Komito, Hiroshi Nakai, Kohsuke Yamamoto, Sho Akiyama | 2017-09-05 |
| 9405227 | Powder conveying device, process cartridge, and image forming apparatus | Kuniyori Takano, Takuya Sekine, Kohsuke Yamamoto | 2016-08-02 |
| D750702 | Powder container | Hirobumi Ooyoshi, Masayuki Yamane | 2016-03-01 |
| 9031456 | Image forming apparatus, detachable unit, and plural detachable units | — | 2015-05-12 |
| 8588672 | Lubricant applicator, process cartridge, transfer unit, and image forming apparatus | Yuji Arai, Ken Amemiya, Satoshi Hatori, Toshio Koike, Michiya Okamoto +1 more | 2013-11-19 |
| 8543029 | Image forming apparatus, image forming method, and process cartridge for adjusting applications of lubricants | — | 2013-09-24 |
| 8472856 | Image forming apparatus | Hiromichi Ninomiya, Naohiro Kumagai, Hiroki Matsuura, Yoshinori Ozawa | 2013-06-25 |
| 7313347 | Cleaning device, process cartridge, image forming apparatus and toner | Takeshi Shintani, Takuzi Yoneda, Ken Amemiya, Takaaki Tawada, Tokuya Ojimi +12 more | 2007-12-25 |
| 7177555 | Image forming process and image forming apparatus | Bing Shu, Mitsuo Aoki, Haruji Mizuishi, Mikio Ishibashi, Masaru Tanaka +2 more | 2007-02-13 |
| 7139503 | Cleaning apparatus with conductive member | — | 2006-11-21 |
| 7068960 | Cleaning device including brush roller with high cleaning performance, image forming apparatus and process unit including the cleaning device, method of removing deposit, and method of forming an image | — | 2006-06-27 |
| 6898383 | Image forming apparatus | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Kenzo Tatsumi +3 more | 2005-05-24 |
| 6807390 | Image forming apparatus | Takeo Suda, Shinichi Kawahara, Masanori Kawasumi, Ken Amemiya, Hiroshi Ono | 2004-10-19 |
| 6628903 | Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Kenzo Tatsumi +3 more | 2003-09-30 |
| 6266501 | Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal | Haruji Mizuishi, Masaru Tanaka, Kenzo Tatsumi, Ken Amemiya, Toshitaka Yamaguchi +3 more | 2001-07-24 |
| 6160969 | Image forming apparatus with a voltage applying unit for image transfer | Kouji Ishigaki, Haruji Mizuishi, Masaru Tanaka, Hiroyuki Ohkaji, Kenzou Tatsumi +3 more | 2000-12-12 |
| 6148161 | Image forming apparatus with improved toner density control | Noriyuki Usui, Ken Amemiya, Haruji Mizuishi, Mayumi Ohori, Masaru Tanaka +3 more | 2000-11-14 |
| 6144811 | Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper | Mayumi Ohori, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Ohkaji, Kenzo Tatsumi +3 more | 2000-11-07 |
| 6144822 | Image forming apparatus having detachable transfer roller and discharge device | Toshitaka Yamaguchi, Masaru Tanaka, Kenzo Tatsumi, Ken Amemiya, Haruji Mizuishi +3 more | 2000-11-07 |
| 6128449 | Image forming apparatus and method for controlling charging and developing bias voltage | Hideki Zenba, Masaru Tanaka, Haruji Mizuishi, Hiroyuki Okaji, Kenzo Tatsumi +2 more | 2000-10-03 |
| 6085062 | Electrophotographic image forming apparatus | Haruji Mizuishi, Ken Amemiya, Hiroyuki Ohkaji, Mayumi Ohori, Masaru Tanaka +2 more | 2000-07-04 |