Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8180270 | Image forming apparatus for controlling glossiness of an image | Kei Yasutomi, Hitoshi Maruyama, Masanori Saitoh, Takeo Tsukamoto, Katsuhiro Aoki +1 more | 2012-05-15 |
| 7925188 | Development device, process cartridge, and image forming apparatus using the development device | Tetsuya Senoh, Masahiko Satoh, Masanori Kawasumi, Hideki Zemba, Takeshi Uchitani +2 more | 2011-04-12 |
| 7672605 | Transfer device and image forming apparatus | Shin Kayahara, Yoshiyuki Kimura, Masahiko Satoh, Masanori Kawasumi, Hideki Zemba +3 more | 2010-03-02 |
| 7657218 | Gloss providing sheet and image formation apparatus | Hitoshi Maruyama, Kei Yasutomi, Reki Nakamura | 2010-02-02 |
| 7630659 | Method and apparatus for image forming capable of effectively performing a charging process | Takeshi Uchitani, Yoshiyuki Kimura, Masahiko Satoh, Masanori Kawasumi, Hideki Zemba +3 more | 2009-12-08 |
| 7603062 | Conductive member, and charging roller, process cartridge and image forming apparatus using same | Eiji Shimojo, Masanori Kawasumi, Yoshiyuki Kimura, Masahiko Satoh, Takeshi Uchitani +4 more | 2009-10-13 |
| 7555243 | Charging member, process cartridge including the same, and image forming apparatus including the same | Masahiko Satoh, Masanori Kawasumi, Yoshiyuki Kimura, Hideki Zemba, Takeshi Uchitani +3 more | 2009-06-30 |
| 7493075 | Cleaning device, process cartridge and image forming apparatus | Takeshi Shintani, Takuji Yoneda, Toshio Koike, Masato Yanagida, Naohiro Kumagai +5 more | 2009-02-17 |
| 7430377 | Image forming apparatus and process cartridge having a detachable unit body having a lubricant applying unit and image carrier mounted thereon | Toshio Koike, Ken Amemiya, Naohiro Kumagai, Masato Yanagida, Masanori Kawasumi +8 more | 2008-09-30 |
| 7400844 | Image forming apparatus and process cartridge with a cleaner for removing toner from an image bearing member | Hiroyuki Nagashima, Masato Yanagida, Naohiro Kumagai, Takeshi Shintani, Toshio Koike +4 more | 2008-07-15 |
| 7386257 | Imaging apparatus, and toner and process cartridge used in the imaging apparatus | Toshio Koike, Masato Yanagida, Takeshi Shintani, Naohiro Kumagai, Atsushi Sampe +4 more | 2008-06-10 |
| 7295796 | Image forming apparatus having a temporary toner holding device and a toner collecting device | Hideo Yoshizawa, Hiroyuki Nagashima, Yoshiyuki Kimura, Hideki Zemba, Eiji Kurimoto +8 more | 2007-11-13 |
| 7292817 | Image forming apparatus, process cartridge, and waste toner recovery device | Hideo Yoshizawa, Hiroyuki Nagashima, Yoshiyuki Kimura, Hideki Zemba, Eiji Kurimoto +2 more | 2007-11-06 |
| 7272354 | Cleaning unit and image forming apparatus having multiple cleaning blades | Masami Tomita, Masanori Kawasumi, Toshio Koike, Naohiro Kumagai, Atsushi Sampe +11 more | 2007-09-18 |
| 7266324 | Charging device, and process cartridge and image forming apparatus using the charging device | Masato Yanagida, Hiroyuki Nagashima, Naohiro Kumagai, Toshio Koike, Atsushi Sampe +5 more | 2007-09-04 |
| 7228099 | Cleaning device for cleaning a surface of an image support body | Takeshi Shintani, Takuji Yoneda, Toshio Koike, Masato Yanagida, Naohiro Kumagai +5 more | 2007-06-05 |
| 7218877 | Charging device, and process cartridge and image forming apparatus including the charging device using the same | Masato Yanagida, Hiroyuki Nagashima, Naohiro Kumagai, Toshio Koike, Atsushi Sampe +5 more | 2007-05-15 |
| 7184684 | Image forming apparatus, process cartridge, and waste toner recovery device | Hideo Yoshizawa, Hiroyuki Nagashima, Yoshiyuki Kimura, Hideki Zemba, Eiji Kurimoto +2 more | 2007-02-27 |
| 7149465 | Cleaning unit, process cartridge, image forming apparatus, and toner | Ken Amemiya, Masato Yanagida, Naohiro Kumagai, Takeshi Shintani, Takaaki Tawada +8 more | 2006-12-12 |
| 7139504 | Charging device, and process cartridge and image forming apparatus using the charging device | Masato Yanagida, Hiroyuki Nagashima, Naohiro Kumagai, Toshio Koike, Atsushi Sampe +5 more | 2006-11-21 |
| 7130564 | Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image forming | Toshio Koike, Masato Yanagida, Naohiro Kumagai, Takeshi Shintani, Masanori Kawasumi +4 more | 2006-10-31 |
| 7110699 | Image forming apparatus and process cartridge for use in the same | Hideo Yoshizawa, Hiroyuki Nagashima, Yoshiyuki Kimura, Hideki Zemba, Eiji Kurimoto | 2006-09-19 |
| 7110696 | Cleaning unit, process cartridge, and image forming apparatus | Masami Tomita, Masanori Kawasumi, Toshio Koike, Naohiro Kumagai, Atsushi Sampe +11 more | 2006-09-19 |
| 7085528 | Cleaning unit, process cartridge, and image forming apparatus | Takeshi Shintani, Naohiro Kumagai, Masato Yanagida, Toshio Koike, Masanori Kawasumi +2 more | 2006-08-01 |
| 7065316 | Cleaning unit, process cartridge, image forming apparatus, and toner | Masato Yanagida, Atsushi Sampe, Naohiro Kumagai, Toshio Koike, Takeshi Shintani +3 more | 2006-06-20 |