Inventor
IMAFUKU DAISUKE
JP16 patents
Patents
16 patentsUS7245429B2Jul 17, 2007
Image display device, rear projection type screen used in image display device, Fresnel lens sheet, and method of making Fresnel lens sheet
HITACHI LTD20 citations92
US6768594B2Jul 27, 2004
Projection lens apparatus and rear projection type image display apparatus using the same
HITACHI LTD40 citations92
US7362503B2Apr 22, 2008
Screen, Fresnel lens sheet used for the same, and image display apparatus using the same
HITACHI LTD7 citations74
US7261421B2Aug 28, 2007
Optical projector and image display apparatus using the same
HITACHI LTD8 citations74
US7460301B2Dec 2, 2008
Image display apparatus, and transmissive screen and reflecting mirror used for same
HITACHI LTD8 citations73
US7095558B2Aug 22, 2006
Image display device, rear projection type screen used in image display device, Fresnel lens sheet, and method of making Fresnel lens sheet
HITACHI LTD4 citations63
US7589904B2Sep 15, 2009
Projection type image display device
HITACHI LTD3 citations62
US7433121B2Oct 7, 2008
Projection type image display apparatus
HITACHI LTD3 citations62
US7697202B2Apr 13, 2010
Screen, fresnel lens sheet used for the same, and image display apparatus using the same
HITACHI LTD1 citations52
US7581838B2Sep 1, 2009
Optical projector and image display apparatus using the same
HITACHI LTD1 citations52
US7551352B2Jun 23, 2009
Image display apparatus, as well as, Fresnel lens sheet and screen to be used therein
HITACHI LTD1 citations52
US7436593B2Oct 14, 2008
Screen, fresnel lens sheet used therefor, and image display apparatus using the same
HITACHI LTD0 citations52
US7675679B2Mar 9, 2010
Image display device and Fresnel lens sheet used therefor
HITACHI LTD0 citations42
US7440186B2Oct 21, 2008
Screen, a fresnel lens sheet used for the screen, and an image display apparatus using the screen
HITACHI LTD0 citations42
US7403335B2Jul 22, 2008
Screen, Fresnel lens sheet used for the same, and image display apparatus using the same
HITACHI LTD0 citations42
US7529023B2May 5, 2009
Image display, Fresnel lens and screen
HITACHI LTD0 citations41