Yoshinori Hirai

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal display element and color display device having part...
- Patent number 6,654,082
- Issue date Nov 25, 2003
- Optrex Corporation
- Yuji Sohda
- G02 - OPTICS
Information Patent Grant
Method of driving passive matrix liquid crystal display
- Patent number 6,346,774
- Issue date Feb 12, 2002
- Optrex Corporation
- Kiyoshi Tamai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Picture display device and method of driving picture display device
- Patent number 6,144,373
- Issue date Nov 7, 2000
- Asahi Glass Company Ltd.
- Akira Nakazawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal display element and a projection type liquid crystal...
- Patent number 6,122,021
- Issue date Sep 19, 2000
- Asahi Glass Company, Ltd.
- Yoshinori Hirai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal/polymer composite with high optical anisotropy and l...
- Patent number 6,018,378
- Issue date Jan 25, 2000
- Asahi Glass Company, Ltd.
- Yoshinori Hirai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal optical element, liquid crystal display element and...
- Patent number 6,017,466
- Issue date Jan 25, 2000
- AG Technology Co., Ltd.
- Yohsuke Fujino
- G02 - OPTICS
Information Patent Grant
Driving method for a liquid crystal display device
- Patent number 5,953,002
- Issue date Sep 14, 1999
- Asahi Glass Company Ltd.
- Yoshinori Hirai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Method of driving a liquid crystal display device and a driving cir...
- Patent number 5,900,857
- Issue date May 4, 1999
- Asahi Glass Company Ltd.
- Takeshi Kuwata
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Display device with optical member having two parts in overlay rela...
- Patent number 5,838,404
- Issue date Nov 17, 1998
- Asahi Glass Company Ltd.
- Masao Ozeki
- G02 - OPTICS
Information Patent Grant
Method of driving a picture display device
- Patent number 5,831,586
- Issue date Nov 3, 1998
- Asahi Glass Company Ltd.
- Yoshinori Hirai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Multiple line simultaneous selection method for a simple matrix LCD...
- Patent number 5,774,101
- Issue date Jun 30, 1998
- Asahi Glass Company Ltd.
- Yoshinori Hirai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Projection type color liquid crystal optical apparatus
- Patent number 5,754,260
- Issue date May 19, 1998
- AG Technology Co., Ltd.
- Yoshiharu Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of driving a picture display device
- Patent number 5,734,364
- Issue date Mar 31, 1998
- Asahi Glass Company Ltd.
- Yoshinori Hirai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Projection type color liquid crystal optical apparatus
- Patent number 5,648,860
- Issue date Jul 15, 1997
- AG Technology Co., Ltd.
- Yoshiharu Ooi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Active matrix liquid crystal display element and projection type ac...
- Patent number 5,386,306
- Issue date Jan 31, 1995
- Asahi Glass Company Ltd.
- Tomoki Gunjima
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal display element and a projection type liquid crystal...
- Patent number 5,379,137
- Issue date Jan 3, 1995
- AG Technology Co., Ltd.
- Yoshinori Hirai
- G02 - OPTICS
Information Patent Grant
Liquid crystal optical element and a laser projection apparatus usi...
- Patent number 5,331,446
- Issue date Jul 19, 1994
- AG Technology Co., Ltd.
- Yoshinori Hirai
- G02 - OPTICS
Information Patent Grant
Liquid crystal display element with electrode having concave-convex...
- Patent number 5,283,675
- Issue date Feb 1, 1994
- AG Technology Co., Ltd.
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Grant
Projection type display apparatus having an aperture stop means inc...
- Patent number 5,274,480
- Issue date Dec 28, 1993
- Asahi Glass Company Ltd.
- Yoshinori Hirai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Liquid crystal display apparatus for providing a gray scale and a p...
- Patent number 5,264,953
- Issue date Nov 23, 1993
- Asahi Glass Company Ltd.
- Yoshinori Hirai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Liquid crystal optical element with liquid crystal in polymer matri...
- Patent number 5,235,445
- Issue date Aug 10, 1993
- AG Technology Co., Ltd.
- Yoshinori Hirai
- G02 - OPTICS
Information Patent Grant
Projection type active matrix polymer dispersed liquid crystal disp...
- Patent number 5,216,531
- Issue date Jun 1, 1993
- Asahi Glass Company Ltd.
- Yoshinori Hirai
- G02 - OPTICS
Information Patent Grant
Transparent-scattering type optical device including a prism with a...
- Patent number 5,206,746
- Issue date Apr 27, 1993
- Asahi Glass Company Ltd.
- Yoshiharu Ooi
- G02 - OPTICS
Information Patent Grant
Liquid crystal display element and a projection type liquid crystal...
- Patent number 5,196,952
- Issue date Mar 23, 1993
- AG Technology Co., Ltd.
- Yoshinori Hirai
- G02 - OPTICS
Information Patent Grant
Active matrix liquid crystal display element and projection type ac...
- Patent number 5,150,232
- Issue date Sep 22, 1992
- Asahi Glass Company Ltd.
- Tomoki Gunkima
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Active matrix liquid crystal display element and a projection type...
- Patent number 5,103,327
- Issue date Apr 7, 1992
- Asahi Glass Company Ltd.
- Yoshinori Hirai
- G02 - OPTICS

Yoshinori Hirai

Person

Patents Grantslast 30 patents

Liquid crystal display element and color display device having part...

Method of driving passive matrix liquid crystal display

Picture display device and method of driving picture display device

Liquid crystal display element and a projection type liquid crystal...

Liquid crystal/polymer composite with high optical anisotropy and l...

Liquid crystal optical element, liquid crystal display element and...

Driving method for a liquid crystal display device

Method of driving a liquid crystal display device and a driving cir...

Display device with optical member having two parts in overlay rela...

Method of driving a picture display device

Multiple line simultaneous selection method for a simple matrix LCD...

Projection type color liquid crystal optical apparatus

Method of driving a picture display device

Projection type color liquid crystal optical apparatus

Active matrix liquid crystal display element and projection type ac...

Liquid crystal display element and a projection type liquid crystal...

Liquid crystal optical element and a laser projection apparatus usi...

Liquid crystal display element with electrode having concave-convex...

Projection type display apparatus having an aperture stop means inc...

Liquid crystal display apparatus for providing a gray scale and a p...

Liquid crystal optical element with liquid crystal in polymer matri...

Projection type active matrix polymer dispersed liquid crystal disp...

Transparent-scattering type optical device including a prism with a...

Liquid crystal display element and a projection type liquid crystal...

Active matrix liquid crystal display element and projection type ac...

Active matrix liquid crystal display element and a projection type...