NY

Nobuyuki Yanagawa

Ricoh Company: 55 patents #171 of 9,818Top 2%
Overall (All Time): #44,816 of 4,157,543Top 2%
56
Patents All Time

Issued Patents All Time

Showing 1–25 of 56 patents

Patent #TitleCo-InventorsDate
7656420 Controlling timing for starting image formation Yoshinobu Takeyama, Shingo Suzuki 2010-02-02
7583919 Color image forming apparatus capable of effectively matching registration between elementary color images Shingo Suzuki 2009-09-01
7583281 Image forming apparatus Yoshinobu Takeyama 2009-09-01
7542702 Image forming apparatus having a simple cassette of image bearing photoconductors Masanori Saito 2009-06-02
7539439 Image carrier toner unit and image forming apparatus Masanori Saito, Nekka Matsuura 2009-05-26
7502041 Method and apparatus for image forming capable of synthesizing a full color image without causing deviations of color layers Shingo Suzuki 2009-03-10
7499066 Image forming apparatus with improved capability of image superposition Yoshinobu Takeyama 2009-03-03
7450138 Controlling timing for starting image formation Yoshinobu Takeyama, Shingo Suzuki 2008-11-11
7257350 Cleaning unit with a light beam path for the passage of a light beam Masanori Saito 2007-08-14
7247840 Image forming apparatus, and method of correcting timing for generating laser beams Yoshinobu Takeyama 2007-07-24
7149446 Belt apparatus used in image formation, and an image formation apparatus Masanori Saitoh 2006-12-12
7123858 Two-station type color image forming apparatus with separately replaceable components Masanori Saito 2006-10-17
7082274 Image forming apparatus with components removable in preselected direction and order Masanori Saitoh, Nekka Matsuura 2006-07-25
7070269 Recording method and apparatus with an intermediate transfer medium based on transfer-type recording mechanism Kiyoshi Tanikawa, Tadashi Saito, Aino Noguchi, Yasuo Katano, Kakuji Murakami +4 more 2006-07-04
6933959 Optical scanning device and image forming apparatus Akira Kojima, Masahiko Katoh 2005-08-23
6920291 Belt apparatus used in image formation, and an image formation apparatus Masanori Saitoh 2005-07-19
6919911 Image forming apparatus Yoshinobu Takeyama 2005-07-19
6891554 Method and device for writing control and image forming device Yoshinobu Takeyama, Nekka Matsuura 2005-05-10
6842598 Image forming apparatus having a plurality of developing means around an image carrier Hideaki Kibune 2005-01-11
6839531 Belt apparatus used in image formation, and an image formation apparatus Masanori Saitoh 2005-01-04
6837578 Recording method and apparatus with an intermediate transfer medium based on transfer-type recording mechanism Kiyoshi Tanikawa, Tadashi Saito, Aino Noguchi, Yasuo Katano, Kakuji Murakami +4 more 2005-01-04
6832061 Image forming apparatus with selectively lockable intermediate members for supporting developing and forming devices of same Masanori Saito 2004-12-14
6718151 Image formation apparatus and method of alternating developing units Hideaki Kibune 2004-04-06
6674982 Image forming apparatus including components mounted and/or dismounted in selected order Masanori Saitoh, Nekka Matsuura 2004-01-06
6623816 Recording method and apparatus with an intermediate transfer medium based on transfer-type recording mechanism Kiyoshi Tanikawa, Tadashi Saito, Aino Noguchi, Yasuo Katano, Kakuji Murakami +4 more 2003-09-23