KS

Keiichi Serizawa

Ricoh Company: 25 patents #815 of 9,818Top 9%
Overall (All Time): #161,177 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
12103322 Method and system for manufacturing container product Rie Hirayama, Kazuhiro Fujita, Teruhiro Tadokoro 2024-10-01
12097997 Container and content containing body, and method for producing container and container producing apparatus Kazuhiro Fujita, Masako Yoshii, Makoto Hino, Kazuhiro Akatsu 2024-09-24
11738408 Marking device, medium, container, and marking method Rie Hirayama, Kazuhiro Fujita 2023-08-29
10444758 Autonomous traveling device Kazuhiro Takabayashi, Daisuke Maeda 2019-10-15
9772809 Printed matter delivery system, image forming apparatus, and printed matter delivery apparatus Kazunori Bannai, Yasuhisa Ehara, Katsunori Shoji, Daisuke Maeda, Yusuke Funayama +2 more 2017-09-26
9436004 Optical scanning device and image forming apparatus Hiroshi Johno, Daisuke Yoshida, Kazunori Watanabe 2016-09-06
9333766 Optical scanner with housing to support light sources and image forming apparatus incorporating same Kazunori Watanabe, Hiroshi Johno, Shuji Takamatsu 2016-05-10
9261698 Optical scanner and image forming apparatus including same Kazunori Watanabe, Hiroshi Johno 2016-02-16
9170523 Optical scanning apparatus, method for performing the same and image forming apparatus Hiroshi Johno, Daisuke Yoshida, Kazunori Watanabe 2015-10-27
8928709 Optical scanner and image forming apparatus including same Kazunori Watanabe, Hiroshi Johno 2015-01-06
8780159 Optical scanner and image forming apparatus including same Takeshi Yamakawa, Kazunori Watanabe 2014-07-15
8754918 Optical scanner and image forming apparatus including same Hiroshi Johno, Takeshi Yamakawa, Kazunori Watanabe 2014-06-17
8711195 Optical writer and image forming apparatus including same Hiroshi Johno, Kazunori Watanabe 2014-04-29
8610753 Optical scanner and image forming apparatus including same Takeshi Yamakawa, Kazunori Watanabe, Hiroshi Johno, Tomoya FUJII 2013-12-17
8503055 Curve correction mechanism, optical scanner, and image forming apparatus Hiroshi Johno, Takeshi Yamakawa, Kazunori Watanabe 2013-08-06
8471883 Optical scanner and image forming apparatus including same Takeshi Yamakawa, Kazunori Watanabe 2013-06-25
8368986 Optical scanning device and image forming apparatus Takeshi Yamakawa, Kazunori Watanabe, Hiroshi Johno 2013-02-05
8184352 Optical scanning device and image forming apparatus Hiroshi Johno, Takeshi Yamakawa, Kazunori Watanabe 2012-05-22
8107148 Curvature correction device, optical scanning unit, and image forming apparatus Susumu Narita 2012-01-31
8027075 Optical scanning unit and image forming apparatus incorporating same 2011-09-27
7782501 Light-orientation adjusting unit, optical writing unit having light-orientation adjusting unit, and image forming apparatus having optical writing unit 2010-08-24
7443556 Optical scanning apparatus and image forming apparatus 2008-10-28
7355617 Optical scanner and image forming apparatus Yasumasa Tomita 2008-04-08
7319475 Method and apparatus for image forming capable of preventing image quality deterioration induced by heat from an optical deflector Yasumasa Tomita, Hiroshi Yoshizawa, Tetsuya Kimura, Masato Yokoyama, Keiji Okamoto 2008-01-15
7256813 Optical scanner and image forming apparatus Yasumasa Tomita 2007-08-14