IA

Issei Abe

Ricoh Company: 23 patents #910 of 9,818Top 10%
Overall (All Time): #181,680 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
11595631 Imaging device, image capturing optical system, and movable apparatus Kento Nakamura, Hiroyuki Satoh, Jun Kishiwada 2023-02-28
9946144 Projection optical system and image projecting apparatus Kazuhiro Fujita, Atsushi Takaura 2018-04-17
9625692 Projection optical system and image projecting apparatus Tatsuya Takahashi, Kazuhiro Fujita 2017-04-18
9417511 Lighting device, projector including the same, and lighting method Tatsuya Takahashi, Kazuhiro Fujita 2016-08-16
8905550 Projection optical system and image projection device Tatsuya Takahashi, Kazuhiro Fujita 2014-12-09
8830298 Wide-angle lens and imaging apparatus using the same Hayato Yoshida, Naoki Moniwa 2014-09-09
8807763 Image projection apparatus Tatsuya Takahashi, Kazuhiro Fujita 2014-08-19
8777421 Projection optical system Atsushi Takaura, Kazuhiro Fujita, Akihiro Yamakage, Osamu Nagase, Yoshitsugu Kohno 2014-07-15
8657450 Projection optical system and image projection device Kazuhiro Fujita, Tatsuya Takahashi 2014-02-25
8643958 Wide angle lens and imaging device Hayato Yoshida, Naoki Moniwa 2014-02-04
8529070 Projection optical apparatus Atsushi Takaura, Kazuhiro Fujita, Akihiro Yamakage, Osamu Nagase, Yoshitsugu Kohno 2013-09-10
8511837 Projection optical system and image projector Tatsuya Takahashi, Kazuhiro Fujita 2013-08-20
8284462 Image reading device and image forming apparatus Kiichiro Nishina, Masahiro Itoh, Kazuhiro Fujita 2012-10-09
8254039 Variable magnification optical system and projector Kazuhiro Fujita 2012-08-28
8189264 Projection optical system and image display device Kazuhiro Fujita 2012-05-29
8128238 Projection optical system and image displaying apparatus Kazuhiro Fujita, Atsushi Takaura 2012-03-06
8116013 Wide-angle lens and image pickup apparatus Hayato Yoshida, Naoki Moniwa 2012-02-14
8025415 Projection optical system and image projecting apparatus Kazuhiro Fujita, Atsushi Takaura 2011-09-27
7946717 Projection optical system and image projecting apparatus Kazuhiro Fujita, Atsushi Takaura 2011-05-24
7911704 Projection optical system and image display apparatus Atsushi Takaura, Kazuhiro Fujita 2011-03-22
7773305 Wide-angle lens and image capturing apparatus Hayato Yoshida, Yasushi Takahashi, Naoki Moniwa, Toshiyuki Kawasaki, Ryosuke Kasahara +1 more 2010-08-10
7646536 Reflective screen and display system Kazuhiro Fujita, Atsushi Takaura 2010-01-12
7529032 Projection optical system and image display apparatus Atsushi Takaura, Kazuhiro Fujita 2009-05-05