Inventor
HISADA TAKANORI
JP37 patents
⚠️ This page may combine multiple inventors who share the name “HISADA TAKANORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
27 patentsUS5491525AFeb 13, 1996
Illumination unit for liquid crystal projection display apparatus and liquid crystal display apparatus having it used
HITACHI LTD91 citations95
US8020999B2Sep 20, 2011
Projection type image display apparatus
HITACHI LTD10 citations93
US8002418B2Aug 23, 2011
Projection type image display apparatus
HITACHI LTD10 citations93
US7914153B2Mar 29, 2011
Projection type image display apparatus
HITACHI LTD11 citations93
US7766488B2Aug 3, 2010
Projection type image display apparatus
HITACHI LTD15 citations93
US7535648B2May 19, 2009
Projection type image display
HITACHI LTD20 citations93
US4941719AJul 17, 1990
Light scanning system
HITACHI LTD39 citations89
US8002417B2Aug 23, 2011
Projection-type image display apparatus
HITACHI LTD11 citations84
US7896507B2Mar 1, 2011
Projection type display apparatus
HITACHI LTD7 citations84
US7857462B2Dec 28, 2010
Projection optical unit, projection-type image displaying apparatus and projection-type image displaying system
HITACHI LTD11 citations84
US7850313B2Dec 14, 2010
Projection type image display apparatus
HITACHI LTD8 citations84
US7780296B2Aug 24, 2010
Projection optical unit, projection-type image displaying apparatus and projection-type image displaying system
HITACHI LTD9 citations84
US7766487B2Aug 3, 2010
Projection-type image display apparatus
HITACHI LTD8 citations84
US7670007B2Mar 2, 2010
Projection display, projection optical system and transmission lens or free curved lens
HITACHI LTD8 citations84
US7586687B2Sep 8, 2009
Projecting optical unit and projecting type image display apparatus therewith
HITACHI LTD12 citations84
US7467872B2Dec 23, 2008
Projection optical unit and projection type video display device using the unit
HITACHI LTD16 citations84
US4557567ADec 10, 1985
Lens system with plastic lenses compensating for temperature changes
HITACHI LTD20 citations82
US7901097B2Mar 8, 2011
Display apparatus and projection type lighting apparatus therefor
HITACHI LTD5 citations74
US7553031B2Jun 30, 2009
Projection image display apparatus and projection optical unit to be used therein
HITACHI LTD6 citations74
US4740676AApr 26, 1988
Range finding automatic focusing system employing a rotatable transparent plate and a half-split light receiving element
HITACHI LTD19 citations73
US7961400B2Jun 14, 2011
Projecting optical unit and projecting type image display apparatus therewith
HITACHI LTD2 citations63
US7701639B2Apr 20, 2010
Projection type image display apparatus
HITACHI LTD5 citations63
US4201933AMay 6, 1980
Electron gun structure for a pickup tube
HITACHI LTD3 citations63
US7589904B2Sep 15, 2009
Projection type image display device
HITACHI LTD3 citations62
US4782356ANov 1, 1988
Automatic focusing apparatus
HITACHI LTD5 citations62
US7551352B2Jun 23, 2009
Image display apparatus, as well as, Fresnel lens sheet and screen to be used therein
HITACHI LTD1 citations52
US7675679B2Mar 9, 2010
Image display device and Fresnel lens sheet used therefor
HITACHI LTD0 citations42
HIRATA KOJI
7 patentsUS8313199B2Nov 20, 2012
Projection display system including lens group and reflecting mirror
HIRATA KOJI16 citations92
US8182097B2May 22, 2012
Projection type image display apparatus
HIRATA KOJI10 citations92
US8408717B2Apr 2, 2013
Projection type image display apparatus
HIRATA KOJI8 citations84
US9022581B2May 5, 2015
Projection display system with two reflecting mirrors
HIRATA KOJI4 citations73
US8573787B2Nov 5, 2013
Projection type display apparatus
HIRATA KOJI2 citations63
US8403504B2Mar 26, 2013
Projection type display apparatus
HIRATA KOJI3 citations63
US8733953B2May 27, 2014
Display apparatus and projection type lighting apparatus therefor
HIRATA KOJI1 citations52