HY

Hiroshi Yoshinaga

Ricoh Company: 223 patents #2 of 9,818Top 1%
Sumitomo Electric Industries: 8 patents #3,473 of 21,551Top 20%
FC Fukuda Metal Foil & Powder Co.: 1 patents #50 of 95Top 55%
SL Sri Sports Limited: 1 patents #123 of 176Top 70%
SI Sumitomo Rubber Industries: 1 patents #1,096 of 1,637Top 70%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
IBM: 1 patents #44,794 of 70,183Top 65%
Fujitsu Limited: 1 patents #14,843 of 24,456Top 65%
Overall (All Time): #2,229 of 4,157,543Top 1%
239
Patents All Time

Issued Patents All Time

Showing 201–225 of 239 patents

Patent #TitleCo-InventorsDate
7379698 Image forming apparatus and fixing apparatus for fixing toner image by using belt 2008-05-27
7344615 Method and apparatus for performing a charging process on an image carrying device Masumi Sato, Yukiko Iwasaki, Hitoshi Ishibashi, Takatsugu Fujishiro, Masami Hiramatsu +1 more 2008-03-18
7339120 Electromagnetic wave shield Yasuhiro Notohara, Shinichirou Kaneko, Futoshi Deguchi, Shoichi Shimizu 2008-03-04
7227504 Gate antenna device Futoshi Deguchi, Masahiko Tanaka, Hiroaki Haruyama 2007-06-05
7182266 Noncontact IC card reader/writer Futoshi Deguchi, Masahiko Tanaka, Akihiko Hirata, Hiroaki Haruyama 2007-02-27
7164344 Non-contact IC card reading/writing apparatus Futoshi Deguchi, Akihiko Hirata, Masahiko Tanaka 2007-01-16
7151907 Fixing device, image forming apparatus using the same and process cartridge 2006-12-19
7070101 Loop antenna and contactless IC card read/write apparatus Futoshi Deguchi, Masahiko Tanaka, Hiroaki Haruyama 2006-07-04
7072613 Wireless communication medium processing apparatus and wireless communication medium processing system Masahiko Tanaka, Futoshi Deguchi, Yoshitaka Mizoguchi 2006-07-04
7064716 Integrated antenna type non-contact IC card reader/writer Futoshi Deguchi, Akihiko Hirata, Masahiko Tanaka 2006-06-20
7024922 Viscoelastic characteristic value-measuring apparatus and method of measuring viscoelastic characteristic value Noritoshi Nakagawa, Yasuhisa Sekiguchi, Kiyoto Maruoka, Jun Nishibayashi, Seigo Sakagami +1 more 2006-04-11
7022944 Image forming apparatus preventing excessive increase in temperature of fixing device Motokazu Yasui, Hideo Furukawa, Masanao Ehara, Hirofumi Ogawa 2006-04-04
6977022 Method and apparatus for performing a charging process on an image carrying device Masumi Sato, Yukiko Iwasaki, Hitoshi Ishibashi, Takatsugu Fujishiro, Masami Hiramatsu +1 more 2005-12-20
6892044 Liquid application apparatus and image formation apparatus Motokazu Yasui, Masanao Ehara, Hideo Furukawa, Masaaki Yoshikawa 2005-05-10
6881927 Image forming apparatus preventing excessive increase in temperature of fixing device Motokazu Yasui, Hideo Furukawa, Masanao Ehara, Hirofumi Ogawa 2005-04-19
6785505 Fixing device preventing rubbing of toner image Motokazu Yasui, Masanao Ehara, Hideo Furukawa, Hirofumi Ogawa, Hiroyuki Gotoh 2004-08-31
6778804 Fixing device and image forming apparatus including the same Motokazu Yasui 2004-08-17
6778790 Fixing device capable of preventing excessive increase in temperature Motokazu Yasui, Masanao Ehara, Hideo Furukawa, Yukiko Iwasaki 2004-08-17
6778797 Charging roller having elastic member Masumi Sato, Yukiko Iwasaki, Hitoshi Ishibashi, Takatsugu Fujishiro, Masami Hiramatsu 2004-08-17
6636709 Fixing device having temperature detecting member and image forming apparatus using said fixing device Hideo Furukawa, Takuya Ejiri, Motokazu Yasui, Hiroyuki Gotoh, Masanao Ehara +1 more 2003-10-21
6628916 Fixing device preventing rubbing of toner image Motokazu Yasui, Masanao Ehara, Hideo Furukawa, Hirofumi Ogawa, Hiroyuki Gotoh 2003-09-30
6577943 System for distributing road surface information, system for collecting and distributing vehicle information, device for transmitting vehicle information and program for controlling vehicle Yukio Nakao 2003-06-10
6546219 Method and apparatus for performing a charging process on an image carrying device Masumi Sato, Yukiko Iwasaki, Hitoshi Ishibashi, Takatsugu Fujishiro, Masami Hiramatsu +1 more 2003-04-08
6505022 Image forming apparatus having protective layer on the surface of image bearing member to avoid adhesion of film of additives to image bearing member Akio Kosuge, Masumi Sato, Hitoshi Ishibashi, Yukiko Iwasaki 2003-01-07
6366754 Color image forming apparatus with toner recycling Masumi Sato, Kazuhiko Yuuki, Yoshinori Ozawa, Atsushi Takehara 2002-04-02