HS

Hiroyasu Shijo

Ricoh Company: 22 patents #966 of 9,818Top 10%
Overall (All Time): #197,853 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
7894744 Color image forming apparatus, and toner replenishing apparatus Masumi Sato, Tomotoshi Nakahara, Motokazu Yasui 2011-02-22
7787787 Image forming apparatus including controller driving image carriers Tetsuo Yamanaka, Kazuhiko Kobayashi, Yuzoh Katsumata, Mineyo Takahashi 2010-08-31
7606521 Desktop color image forming apparatus and method of making the same Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma +5 more 2009-10-20
7551867 Image forming apparatus including controller driving image carriers Tetsuo Yamanaka, Kazuhiko Kobayashi, Yuzo Katsumata, Mineyo Takahashi 2009-06-23
7457561 Color image forming apparatus, and toner replenishing apparatus Masumi Sato, Tomotoshi Nakahara, Motokazu Yasui 2008-11-25
7436417 Color image forming apparatus, and toner replenishing apparatus Masumi Sato, Tomotoshi Nakahara, Motokazu Yasui 2008-10-14
7406283 Desktop color image forming apparatus and method of making the same Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma +5 more 2008-07-29
7386259 Image forming apparatus including controller driving image carriers Tetsuo Yamanaka, Kazuhiko Kobayashi, Yuzo Katsumata, Mineyo Takahashi 2008-06-10
7333749 Desktop color image forming apparatus and method of making the same Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma +5 more 2008-02-19
7263309 Desktop color image forming apparatus and method of making the same Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma +5 more 2007-08-28
7212764 Color image forming apparatus, and toner replenishing apparatus Masumi Sato, Tomotoshi Nakahara, Motokazu Yasui 2007-05-01
7136600 Image forming apparatus including controller driving image carriers Tetsuo Yamanaka, Kazuhiko Kobayashi, Yuzo Katsumata, Mineyo Takahashi 2006-11-14
6973283 Color image forming apparatus, and toner replenishing apparatus Masumi Sato, Tomotoshi Nakahara, Motokazu Yasui 2005-12-06
6934498 Color image forming apparatus, tandem type color image forming apparatus, and process cartridge for color image forming apparatus Kazuhiko Kobayashi, Tetsuo Yamanaka 2005-08-23
6898407 Desktop color image forming apparatus and method of making the same Yuusuke Noguchi, Hiromichi Ema, Hiroshi Ishii, Yutaka Fukuchi, Kazuosa Kuma +5 more 2005-05-24
6829465 Method and apparatus for image forming capable of effectively performing color displacement detection Tetsuo Yamanaka, Kazuhiko Kobayashi, Jun Hosokawa, Motonori Hanada, Tadashi Shinohara +1 more 2004-12-07
6801749 Apparatuses for color image formation, tandem color image formation and image formation Motokazu Yasui, Masumi Sato, Tomotoshi Nakahara 2004-10-05
6785504 Apparatuses for color image formation, tandem color image formation and image formation Motokazu Yasui, Masumi Sato, Tomotoshi Nakahara 2004-08-31
6766137 Apparatuses for color image formation, tandem color image formation and image formation Motokazu Yasui, Masumi Sato, Tomotoshi Nakahara 2004-07-20
6567643 Apparatuses for color image formation, tandem color image formation and image formation Motokazu Yasui, Masumi Sato, Tomotoshi Nakahara 2003-05-20
5414535 Apparatus for reading image from original image on translucent film with automatic adjustment of the quantity of light from a light source Yoshiaki Kanmoto, Haruhiko Fukuda, Kohtaroh Yonenaga 1995-05-09
5383754 Image forming apparatus having an image orientation identifying device and a binding device Hiroyasu Sumida, Akihisa Itabashi, Hiroshi Fukano, Hiroshi Takashima, Takeshi Ogiwara +1 more 1995-01-24