ES

Eiji Sawamura

Ricoh Company: 12 patents #1,888 of 9,818Top 20%
Overall (All Time): #423,142 of 4,157,543Top 15%
12
Patents All Time

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #TitleCo-InventorsDate
8137883 Toner, developer, image forming method, image forming apparatus, process cartridge, and toner container Ryota Inoue, Shigeru Emoto, Naohiro Watanabe, Masahide Yamada, Akinori Saitoh +4 more 2012-03-20
7989131 Toner, developer, image forming method, image forming apparatus, process cartridge, and toner container Ryota Inoue, Shigeru Emoto, Naohiro Watanabe, Masahide Yamada, Akinori Saitoh +4 more 2011-08-02
7643784 Fixing apparatus, fixing member used in the fixing apparatus, and image forming apparatus having the fixing apparatus Tsuneaki Kondoh, Takayuki Yoshii, Michitaka Higaki, Kohji Kamiya 2010-01-05
7480478 Method and apparatus for image forming capable of effectively fixing a toner image on a recording sheet by using induction heating Norihiko Aze, Motokazu Hasegawa, Takayuki Yoshii 2009-01-20
5999789 Fixing device for an image forming apparatus 1999-12-07
5913095 Image forming apparatus Osamu Takashima, Kazuki Suzuki, Shizuo Kawamura, Yuusuke Noguchi, Masahiro Tomita +1 more 1999-06-15
5774232 Image recording apparatus Yasuhiro Tabata, Koji Hikawa, Yoshimasa Honda, Soukichi Araki, Hiroshi Hosaka +3 more 1998-06-30
5745664 Image synthesizing method and image recording apparatus which electronically synthesizes an image with a page of information Takakazu Nomura, Hiroshi Hosaka, Soukichi Araki, Yoshimasa Honda, Shinji Imoto +1 more 1998-04-28
5717843 Image recording apparatus Yasuhiro Tabata, Koji Hikawa, Yoshimasa Honda, Soukichi Araki, Hiroshi Hosaka +3 more 1998-02-10
5602651 Image recording apparatus Yasuhiro Tabata, Koji Hikawa, Yoshimasa Honda, Soukichi Araki, Hiroshi Hosaka +3 more 1997-02-11
5426495 Image fixing device having heating portion at one end thereof Toshiaki Higaya 1995-06-20
5400123 Image forming apparatus capable of erasing an image recorded in a sheet Masumi Sato, Keizo Yasuda, Motokazu Yasui, Kenichi Hasegawa, Masahiko Sato +2 more 1995-03-21