Inventor
IMAHASE TARO
JP25 patents
Patents
25 patentsUS6626540B2Sep 30, 2003
Image display device
HITACHI LTD95 citations97
US7044607B2May 16, 2006
Image display device
HITACHI LTD17 citations92
US6952241B2Oct 4, 2005
Optical unit, video display apparatus, and color switching method
HITACHI LTD16 citations92
US6926411B2Aug 9, 2005
Image display device
HITACHI LTD17 citations92
US6910773B2Jun 28, 2005
Projection type image display apparatus
HITACHI LTD41 citations92
US6411440B2Jun 25, 2002
Array lens, lighting optical system, optical unit and imaging apparatus
HITACHI LTD19 citations92
US6201645B1Mar 13, 2001
Array lens, lighting optical system, optical unit and imaging apparatus
HITACHI LTD21 citations92
US7553024B2Jun 30, 2009
Image display device
HITACHI LTD9 citations84
US7170567B2Jan 30, 2007
Projection type image display apparatus
HITACHI LTD10 citations84
US7066600B2Jun 27, 2006
Projection type image display apparatus
HITACHI LTD15 citations84
US6893131B2May 17, 2005
Projection type image display apparatus
HITACHI LTD12 citations84
US6392809B2May 21, 2002
Array lens, lighting optical system, optical unit and imaging apparatus
HITACHI LTD10 citations82
US6741396B2May 25, 2004
Array lens, lighting optical system, optical unit and imaging apparatus
HITACHI LTD6 citations74
US6567218B2May 20, 2003
Array lens, lighting optical system, optical unit and imaging apparatus
HITACHI LTD3 citations74
US7929064B2Apr 19, 2011
Optical unit, video display apparatus, and color switching method
HITACHI LTD1 citations63
US7474360B2Jan 6, 2009
Optical unit, video display apparatus, and color switching method
HITACHI LTD3 citations63
US7352416B2Apr 1, 2008
Polarization direction of incident light beam perpendicular or parallel to liquid display molecular orientation for reduced drive voltage
HITACHI LTD5 citations63
US6910775B2Jun 28, 2005
Projection-type video display
HITACHI LTD5 citations63
US6798580B2Sep 28, 2004
Projection type image display apparatus
HITACHI LTD4 citations63
US7246907B2Jul 24, 2007
Projection type image display apparatus using reflective image display elements, reflective polarizing plates and auxiliary analyzers
HITACHI LTD1 citations62
US7090351B2Aug 15, 2006
Projection type image display apparatus
HITACHI LTD2 citations62
US7327520B2Feb 5, 2008
Optical unit and image display apparatus
HITACHI LTD0 citations52
US7106518B2Sep 12, 2006
Optical unit and image display apparatus
HITACHI LTD0 citations52
US6963453B2Nov 8, 2005
Optical unit and image display apparatus
HITACHI LTD0 citations52
US6545812B2Apr 8, 2003
Array lens, lighting optical system, optical unit and imaging apparatus
HITACHI LTD0 citations52