Inventor
WATANABE HITOMU
JP23 patents
⚠️ This page may combine multiple inventors who share the name “WATANABE HITOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DAINIPPON PRINTING CO LTD
20 patentsUS6130777AOct 10, 2000
Lenticular lens sheet with both a base sheet having lenticular elements and a surface diffusing part having elements of elementary shape smaller than lenticular elements
DAINIPPON PRINTING CO LTD137 citations98
US6325880B1Dec 4, 2001
Lenticular lens sheet with both a base sheet having lenticular elements and a surface diffusing part having elements of elementary shape smaller than lenticular elements
DAINIPPON PRINTING CO LTD62 citations96
US5513036AApr 30, 1996
Projection screen
DAINIPPON PRINTING CO LTD62 citations95
US7253955B2Aug 7, 2007
Contrast improving sheet and rear projection screen provided with the same
DAINIPPON PRINTING CO LTD24 citations92
US6989929B2Jan 24, 2006
Fresnel lens sheet and rear projection screen including the same
DAINIPPON PRINTING CO LTD22 citations92
US6597502B2Jul 22, 2003
Rear projection screen with uniformity of luminance
DAINIPPON PRINTING CO LTD28 citations92
US6421181B1Jul 16, 2002
Lenticular lens sheet and rear projection screen
DAINIPPON PRINTING CO LTD22 citations92
US6292294B1Sep 18, 2001
Rear projection screen with uniformity of luminance
DAINIPPON PRINTING CO LTD29 citations92
US6169633B1Jan 2, 2001
Lenticular lens sheet and transmission type screen using the same
DAINIPPON PRINTING CO LTD27 citations92
US5809624ASep 22, 1998
Film stretching structure
DAINIPPON PRINTING CO LTD33 citations92
US5477380ADec 19, 1995
Projection screen
DAINIPPON PRINTING CO LTD36 citations91
US6157491ADec 5, 2000
Lenticular lens sheet
DAINIPPON PRINTING CO LTD27 citations86
US7072109B2Jul 4, 2006
Projection screen and projection display
DAINIPPON PRINTING CO LTD17 citations84
US5889613AMar 30, 1999
Lenticular lens sheet for use in rear projection television
DAINIPPON PRINTING CO LTD8 citations74
US5759456AJun 2, 1998
Plastic sheet manufacturing method and apparatus
DAINIPPON PRINTING CO LTD14 citations74
US6987624B2Jan 17, 2006
Fresnel lens sheet and rear projection screen
DAINIPPON PRINTING CO LTD6 citations63
US6877973B2Apr 12, 2005
Method and apparatus for manufacturing a lens sheet
DAINIPPON PRINTING CO LTD4 citations63
US6707606B2Mar 16, 2004
Lens sheet, projection screen using the same, and method of molding the lens sheet
DAINIPPON PRINTING CO LTD3 citations63
US6639736B2Oct 28, 2003
Base plate, lens sheet, and projection screen
DAINIPPON PRINTING CO LTD3 citations63
US6762883B2Jul 13, 2004
Lenticular lens sheet and rear projection screen
DAINIPPON PRINTING CO LTD5 citations62