Hisao Yokokura

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Active matrix type liquid crystal display apparatus
- Patent number 7,790,248
- Issue date Sep 7, 2010
- Hitachi, Ltd.
- Yasushi Tomioka
- G02 - OPTICS
Information Patent Grant
Active-matrix liquid crystal display
- Patent number 7,615,260
- Issue date Nov 10, 2009
- Hitachi, Ltd.
- Makoto Yoneya
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Active matrix type liquid crystal display apparatus
- Patent number 7,189,439
- Issue date Mar 13, 2007
- Hitachi, Ltd.
- Yasushi Tomioka
- G02 - OPTICS
Information Patent Grant
Liquid crystal display apparatus
- Patent number 6,833,898
- Issue date Dec 21, 2004
- Hitachi, Ltd.
- Sukekazu Aratani
- G02 - OPTICS
Information Patent Grant
Active-matrix liquid crystal display
- Patent number 6,756,089
- Issue date Jun 29, 2004
- Hitachi, Ltd.
- Makoto Yoneya
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Active matrix type liquid crystal display apparatus
- Patent number 6,682,783
- Issue date Jan 27, 2004
- Hitachi, Ltd.
- Yasushi Tomioka
- G02 - OPTICS
Information Patent Grant
Liquid crystal display apparatus
- Patent number 6,483,564
- Issue date Nov 19, 2002
- Hitachi, Ltd.
- Sukekazu Aratani
- G02 - OPTICS
Information Patent Grant
Liquid crystal display apparatus
- Patent number 6,310,676
- Issue date Oct 30, 2001
- Sukekazu Aratani
- G02 - OPTICS
Information Patent Grant
Active-matrix liquid crystal display
- Patent number 6,242,060
- Issue date Jun 5, 2001
- Hitachi, Ltd.
- Makoto Yoneya
- G02 - OPTICS
Information Patent Grant
Liquid crystal display apparatus and a method for manufacturing the...
- Patent number 6,236,441
- Issue date May 22, 2001
- Hitachi, Ltd.
- Sukekazu Aratani
- G02 - OPTICS
Information Patent Grant
Liquid crystal display apparatus and a method for manufacturing the...
- Patent number 6,222,602
- Issue date Apr 24, 2001
- Hitachi, Ltd.
- Sukekazu Aratani
- G02 - OPTICS
Information Patent Grant
Lateral electric field switching mode liquid crystal display appara...
- Patent number 6,130,737
- Issue date Oct 10, 2000
- Hitachi, Ltd.
- Sukekazu Aratani
- G02 - OPTICS
Information Patent Grant
Plastic optical waveguide and optical switch using same
- Patent number 6,047,098
- Issue date Apr 4, 2000
- Hitachi, Ltd.
- Masakazu Sagawa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Active-matrix liquid crystal display
- Patent number 5,928,733
- Issue date Jul 27, 1999
- Hitachi, Ltd.
- Makoto Yoneya
- G02 - OPTICS
Information Patent Grant
Liquid crystal polyimide alignment free of scattering domains
- Patent number RE34885
- Issue date Mar 28, 1995
- Hitachi, Ltd.
- Hisao Yokokura
- 252 - Compositions
Information Patent Grant
Liquid crystal display device and phase plate therefor
- Patent number 5,220,447
- Issue date Jun 15, 1993
- Hitachi, Ltd.
- Hisao Yokokura
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Liquid crystal display cell and process for producing the same
- Patent number 5,067,797
- Issue date Nov 26, 1991
- Hitachi, Ltd.
- Hisao Yokokura
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Ferroelectric liquid crystal device
- Patent number 5,020,883
- Issue date Jun 4, 1991
- Hitachi, Ltd.
- Susumu Era
- G02 - OPTICS
Information Patent Grant
Liquid crystal polyimide alignment free of scattering domains
- Patent number 4,781,439
- Issue date Nov 1, 1988
- Hitachi, Ltd.
- Hisao Yokokura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ferroelectric liquid crystal element with particular alignment film...
- Patent number 4,759,614
- Issue date Jul 26, 1988
- Hitachi, Ltd.
- Hisao Yokokura
- G02 - OPTICS
Information Patent Grant
Colorless liquid crystalline compounds
- Patent number 4,694,098
- Issue date Sep 15, 1987
- Hitachi, Ltd.
- Yoichi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Liquid crystal compound and liquid crystal composition including th...
- Patent number 4,653,866
- Issue date Mar 31, 1987
- Hitachi, Ltd.
- Susumu Era
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Liquid-crystal compound, liquid crystal composition and liquid crys...
- Patent number 4,645,305
- Issue date Feb 24, 1987
- Hitachi, Ltd.
- Hisao Yokokura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ferroelectric liquid crystal cell with rubbed polyimide alignment l...
- Patent number 4,634,228
- Issue date Jan 6, 1987
- Hitachi, Ltd.
- Kishiro Iwasaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystal compound and liquid crystal composition
- Patent number 4,584,120
- Issue date Apr 22, 1986
- Hitachi, Ltd.
- Tsunenori Fujii
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Colorless liquid crystalline compounds
- Patent number 4,564,694
- Issue date Jan 14, 1986
- Hitachi, Ltd.
- Yoichi Hirai
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Liquid crystal display element
- Patent number 4,381,886
- Issue date May 3, 1983
- Hitachi, Ltd.
- Hisao Yokokura
- G02 - OPTICS
Information Patent Grant
Liquid crystal display element
- Patent number 4,278,326
- Issue date Jul 14, 1981
- Hitachi, Ltd.
- Hiromitsu Kawamura
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Active matrix type liquid crystal display apparatus
- Publication number 20070178250
- Publication date Aug 2, 2007
- Yasushi Tomioka
- G02 - OPTICS
Information Patent Application
Active-matrix liquid crystal display
- Publication number 20050012884
- Publication date Jan 20, 2005
- Makoto Yoneya
- G02 - OPTICS
Information Patent Application
Active matrix type liquid crystal display apparatus
- Publication number 20040170777
- Publication date Sep 2, 2004
- Yasushi Tomioke
- G02 - OPTICS
Information Patent Application
Liquid crystal display apparatus
- Publication number 20030058397
- Publication date Mar 27, 2003
- Sukekazu Aratani
- G02 - OPTICS
Information Patent Application
Liquid crystal display apparatus
- Publication number 20020027632
- Publication date Mar 7, 2002
- Sukekazu Aratani
- G02 - OPTICS
Information Patent Application
Active-matrix liquid crystal display
- Publication number 20010046569
- Publication date Nov 29, 2001
- Makoto Yoneya
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Hisao Yokokura

Person

Patents Grantslast 30 patents

Active matrix type liquid crystal display apparatus

Active-matrix liquid crystal display

Active matrix type liquid crystal display apparatus

Liquid crystal display apparatus

Active-matrix liquid crystal display

Active matrix type liquid crystal display apparatus

Liquid crystal display apparatus

Liquid crystal display apparatus

Active-matrix liquid crystal display

Liquid crystal display apparatus and a method for manufacturing the...

Liquid crystal display apparatus and a method for manufacturing the...

Lateral electric field switching mode liquid crystal display appara...

Plastic optical waveguide and optical switch using same

Active-matrix liquid crystal display

Liquid crystal polyimide alignment free of scattering domains

Liquid crystal display device and phase plate therefor

Liquid crystal display cell and process for producing the same

Ferroelectric liquid crystal device

Liquid crystal polyimide alignment free of scattering domains

Ferroelectric liquid crystal element with particular alignment film...

Colorless liquid crystalline compounds

Liquid crystal compound and liquid crystal composition including th...

Liquid-crystal compound, liquid crystal composition and liquid crys...

Ferroelectric liquid crystal cell with rubbed polyimide alignment l...

Liquid crystal compound and liquid crystal composition

Colorless liquid crystalline compounds

Liquid crystal display element

Liquid crystal display element

Patents Applicationslast 30 patents

Active matrix type liquid crystal display apparatus

Active-matrix liquid crystal display

Active matrix type liquid crystal display apparatus

Liquid crystal display apparatus

Liquid crystal display apparatus

Active-matrix liquid crystal display