Inventor
HIRAI YOSHINORI
JP30 patents
⚠️ This page may combine multiple inventors who share the name “HIRAI YOSHINORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ASAHI GLASS CO LTD
16 patentsUS5386306AJan 31, 1995
Active matrix liquid crystal display element and projection type active matrix liquid crystal display device
ASAHI GLASS CO LTD177 citations98
US5953002ASep 14, 1999
Driving method for a liquid crystal display device
ASAHI GLASS CO LTD105 citations97
US5206746AApr 27, 1993
Transparent-scattering type optical device including a prism with a triangular longitudinal cross section
ASAHI GLASS CO LTD77 citations96
US5150232ASep 22, 1992
Active matrix liquid crystal display element and projection type active matrix liquid crystal display device
ASAHI GLASS CO LTD178 citations96
US5900857AMay 4, 1999
Method of driving a liquid crystal display device and a driving circuit for the liquid crystal display device
ASAHI GLASS CO LTD37 citations92
US5838404ANov 17, 1998
Display device with optical member having two parts in overlay relation to reflect light incident at particular angle
ASAHI GLASS CO LTD21 citations92
US5831586ANov 3, 1998
Method of driving a picture display device
ASAHI GLASS CO LTD27 citations92
US5774101AJun 30, 1998
Multiple line simultaneous selection method for a simple matrix LCD which uses temporal and spatial modulation to produce gray scale with reduced crosstalk and flicker
ASAHI GLASS CO LTD35 citations92
US5264953ANov 23, 1993
Liquid crystal display apparatus for providing a gray scale and a projection type liquid crystal display apparatus
ASAHI GLASS CO LTD33 citations92
US5216531AJun 1, 1993
Projection type active matrix polymer dispersed liquid crystal display apparatus with particles of liquid crystal material randomly oriented
ASAHI GLASS CO LTD34 citations92
US5103327AApr 7, 1992
Active matrix liquid crystal display element and a projection type active matrix liquid crystal display apparatus
ASAHI GLASS CO LTD28 citations92
US5734364AMar 31, 1998
Method of driving a picture display device
ASAHI GLASS CO LTD10 citations74
US5274480ADec 28, 1993
Projection type display apparatus having an aperture stop means including non-circular openings
ASAHI GLASS CO LTD16 citations74
US6144373ANov 7, 2000
Picture display device and method of driving picture display device
ASAHI GLASS CO LTD15 citations73
US6122021ASep 19, 2000
Liquid crystal display element and a projection type liquid crystal display apparatus
ASAHI GLASS CO LTD13 citations73
US6018378AJan 25, 2000
Liquid crystal/polymer composite with high optical anisotropy and low dielectric anisotropy to lower hysteresis exhibiting transparent and light scattering states
ASAHI GLASS CO LTD12 citations73
AG TECHNOLOGY CORP
8 patentsUS5754260AMay 19, 1998
Projection type color liquid crystal optical apparatus
AG TECHNOLOGY CORP116 citations97
US5235445AAug 10, 1993
Liquid crystal optical element with liquid crystal in polymer matrix with particular modulus of elasticity
AG TECHNOLOGY CORP83 citations96
US5648860AJul 15, 1997
Projection type color liquid crystal optical apparatus
AG TECHNOLOGY CORP96 citations95
US5331446AJul 19, 1994
Liquid crystal optical element and a laser projection apparatus using polymer dispersed liquid crystal
AG TECHNOLOGY CORP37 citations92
US5283675AFeb 1, 1994
Liquid crystal display element with electrode having concave-convex surface at liquid crystal side
AG TECHNOLOGY CORP46 citations92
US5196952AMar 23, 1993
Liquid crystal display element and a projection type liquid crystal display apparatus
AG TECHNOLOGY CORP24 citations92
US5379137AJan 3, 1995
Liquid crystal display element and a projection type liquid crystal display apparatus
AG TECHNOLOGY CORP17 citations82
US6017466AJan 25, 2000
Liquid crystal optical element, liquid crystal display element and a projection type liquid crystal display apparatus
AG TECHNOLOGY CORP16 citations79