Inventor
TAKAURA ATSUSHI
JP33 patents
⚠️ This page may combine multiple inventors who share the name “TAKAURA ATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RICOH KK
14 patentsUS7048388B2May 23, 2006
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH KK140 citations99
US7637621B2Dec 29, 2009
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH KK26 citations96
US7631975B2Dec 15, 2009
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH KK25 citations96
US7441908B2Oct 28, 2008
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH KK35 citations96
US7637618B2Dec 29, 2009
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH KK17 citations93
US7753531B2Jul 13, 2010
Image display apparatus and projection optical system
RICOH KK27 citations92
US7561336B2Jul 14, 2009
Micro-optical device, spatial optical modulator and projector utilizing the micro-optical device
RICOH KK45 citations92
US7322700B2Jan 29, 2008
Image display apparatus
RICOH KK41 citations92
US7646536B2Jan 12, 2010
Reflective screen and display system
RICOH KK10 citations84
US7529032B2May 5, 2009
Projection optical system and image display apparatus
RICOH KK15 citations84
US7125121B2Oct 24, 2006
Image display apparatus
RICOH KK15 citations84
US7336411B2Feb 26, 2008
Spatial light modulator and display device
RICOH KK6 citations63
US7495831B2Feb 24, 2009
Optical device, display device, and three-dimension image display device for changing a polarization state of a light beam in time
RICOH KK2 citations62
US7564508B2Jul 21, 2009
Light path shift device and image display device
RICOH KK0 citations42
RICOH CO LTD
9 patentsUSRE45258ENov 25, 2014
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH CO LTD14 citations93
US7938545B2May 10, 2011
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH CO LTD14 citations93
US7922341B2Apr 12, 2011
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH CO LTD13 citations93
US8025415B2Sep 27, 2011
Projection optical system and image projecting apparatus
RICOH CO LTD14 citations84
US7946717B2May 24, 2011
Projection optical system and image projecting apparatus
RICOH CO LTD18 citations84
US7911704B2Mar 22, 2011
Projection optical system and image display apparatus
RICOH CO LTD7 citations84
US7857458B2Dec 28, 2010
Image display device and image projection device
RICOH CO LTD11 citations84
USRE48309ENov 17, 2020
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
RICOH CO LTD1 citations73
US7889224B2Feb 15, 2011
Optical path switching device, optical scanning device, and image forming apparatus
RICOH CO LTD3 citations62
TAKAURA ATSUSHI
7 patentsUS9228825B2Jan 5, 2016
Positional change measurement device, positional change measurement method, and image forming apparatus
TAKAURA ATSUSHI4 citations72
US8777421B2Jul 15, 2014
Projection optical system
TAKAURA ATSUSHI4 citations71
USRE45728EOct 6, 2015
Projection optical system, magnification projection optical system, magnification projection apparatus, and image projection apparatus
TAKAURA ATSUSHI1 citations62
US8416471B2Apr 9, 2013
Document illuminating system and image reader including the same
TAKAURA ATSUSHI2 citations62
US8162485B2Apr 24, 2012
Intermediate image formation optical system, image formation device, and methods thereof
TAKAURA ATSUSHI2 citations62
US8529070B2Sep 10, 2013
Projection optical apparatus
TAKAURA ATSUSHI3 citations61
US8610968B2Dec 17, 2013
Document illuminating system and image reader including the same
TAKAURA ATSUSHI0 citations51