AN

Atsushi Nakafuji

Ricoh Company: 42 patents #327 of 9,818Top 4%
Overall (All Time): #73,639 of 4,157,543Top 2%
42
Patents All Time

Issued Patents All Time

Showing 1–25 of 42 patents

Patent #TitleCo-InventorsDate
10021345 Communication management system, communication terminal, communication system, communication control method, and recording medium Takeshi Horiuchi, Takahiro Asai, Yohei Yamamoto, Yoshikazu Goto 2018-07-10
9706164 Communication management system, communication terminal, communication system, communication control method, and recording medium Hideki Shiro, Takahiro Asai, Yohei Yamamoto, Shogo Hyakutake 2017-07-11
9131104 Management device, communication system, and storage medium Yoshinaga Kato 2015-09-08
8515323 Sheet wrapping avoidable fixing apparatus and image forming apparatus Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba +4 more 2013-08-20
8131699 Menu distribution system, menu server, read/write device, method, and computer readable recording medium Shinji Satoh, Takahito Uga, Takuma Katori, Hideharu Kamiyama, Keiichi Suzuki +3 more 2012-03-06
7790343 Process, toner, process cartridge and apparatus for developing a toner image Kazumi Suzuki, Hiromitsu Takagaki, Takashi Fujita, Hiromi Tamura, Shin Kayahara +3 more 2010-09-07
7738827 Image forming apparatus with toner image fixing unit, and the fixing method thereof Yukimichi Someya, Takashi Fujita, Hisashi Kikuchi, Katsuhiro Echigo, Shigeo Kurotaka +2 more 2010-06-15
7711300 Image forming apparatus Takashi Fujita, Shin Kayahara, Hiromitsu Takagaki, Takashi Seto, Katsuaki Miyawaki +2 more 2010-05-04
7711301 Image transfer device for image forming apparatus Takeshi Takemoto, Takashi Seto, Katsuaki Miyawaki, Takashi Fujita, Hiromitsu Takagaki +3 more 2010-05-04
7693471 Sheet wrapping avoidable fixing apparatus and image forming apparatus Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba +4 more 2010-04-06
7643767 Transfer-fixing unit and image forming apparatus for enhanced image quality Takashi Seto, Takeshi Takemoto, Takashi Fujita, Katsuaki Miyawaki, Hiromitsu Takagaki +3 more 2010-01-05
7613419 Image forming apparatus and image forming method characterized by a particular nip time Kazumi Suzuki, Takashi Fujita, Hideki Kosugi, Ichiro Kadota, Hiromitsu Takagaki 2009-11-03
7570911 Image forming method and apparatus for fixing an image Hiroyuki Kunii, Yukimichi Someya, Katsuhiro Echigo, Takashi Fujita, Hisashi Kikuchi +2 more 2009-08-04
7551882 Image forming apparatus equipping improved transfer fixing apparatus Takashi Seto, Takashi Fujita, Katsuaki Miyawaki, Shin Kayahara, Kazumi Suzuki +2 more 2009-06-23
7526242 Transferring apparatus and image forming apparatus Hiromitsu Takagaki, Takashi Fujita, Hirohmi Tamura, Hiroyuki Kunii, Kohji Ue 2009-04-28
7433641 Fixing member, fixing device, and image forming apparatus Hisashi Kikuchi, Toshihiko Baba, Shigeo Kurotaka, Hiroyuki Kunii, Yukimichi Someya +2 more 2008-10-07
7369803 Fixing device and image forming apparatus using the same Katsuhiro Echigo, Takashi Fujita, Shigeo Kurotaka, Hisashi Kikuchi, Yukimichi Someya +3 more 2008-05-06
7346305 Sheet wrapping avoidable fixing apparatus and image forming apparatus Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba +4 more 2008-03-18
7333760 Fixing device with temperature control Toshihiko Baba, Shigeo Kurotaka, Katsuhiro Echigo, Takashi Fujita, Hisashi Kikuchi +3 more 2008-02-19
7299003 Fixing unit and image forming apparatus providing a quick start-up and reduction in energy consumption Shigeo Kurotaka, Masami Tomita, Katsuhiro Echigo, Takashi Fujita, Toshihiko Baba +4 more 2007-11-20
7269384 Transfer-fixing unit with a surface layer of predefined hardness for use in an image forming apparatus Yukimichi Someya, Takashi Fujita, Katsuhiro Echigo, Hiroyuki Kunii, Shigeo Kurotaka +5 more 2007-09-11
7254362 Fixing device, image forming apparatus using the fixing device, and heat insulating member Hisashi Kikuchi, Takashi Fujita, Yukimichi Someya, Katsuhiro Echigo, Hiroyuki Kunii +1 more 2007-08-07
7251429 Image forming apparatus with an energy storage that can be discharged, and with a display of residual energy in the storage Shigeo Kurotaka, Katsuhiro Echigo, Takashi Fujita, Hisashi Kikuchi, Jun Yura +2 more 2007-07-31
7233762 Method of uniformly fixing toner to recording medium in image forming apparatus Hiroyuki Kunii, Katsuhiro Echigo, Hisashi Kikuchi, Yukimichi Someya, Shigeo Kurotaka +3 more 2007-06-19
7224928 Sheet wrapping avoidable fixing apparatus and image forming apparatus Hisashi Kikuchi, Shigeo Kurotaka, Kiyoshi Ohshima, Takashi Fujita, Toshihiko Baba +4 more 2007-05-29