Yoshihiko Ishitaka

Person

Fukushima-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light guide plate having anti-reflection layer and a method of manu...
- Patent number 6,808,282
- Issue date Oct 26, 2004
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Grant
Surface light-emitting device having light-guide panel wherein ligh...
- Patent number 6,806,922
- Issue date Oct 19, 2004
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Grant
Photo-conductor plate reduced in light reflection, and surface emit...
- Patent number 6,693,683
- Issue date Feb 17, 2004
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Grant
Reflection type liquid crystal display device wherein the organic f...
- Patent number 6,330,046
- Issue date Dec 11, 2001
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Grant
Liquid crystal display device
- Patent number 6,233,031
- Issue date May 15, 2001
- Alps Electric Co. Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Grant
Liquid crystal display with corrugated reflective surface
- Patent number 6,219,120
- Issue date Apr 17, 2001
- Alps Electric Co., Ltd.
- Yorihiko Sasaki
- G02 - OPTICS
Information Patent Grant
Reflective type liquid crystal display
- Patent number 6,141,073
- Issue date Oct 31, 2000
- Alps Electric Co., Ltd.
- Yorihiko Sasaki
- G02 - OPTICS
Information Patent Grant
Liquid crystal display with corrugated reflective surface
- Patent number 6,130,736
- Issue date Oct 10, 2000
- Alps Electric Co., Ltd.
- Yorihiko Sasaki
- G02 - OPTICS
Information Patent Grant
Liquid crystal display
- Patent number 5,725,915
- Issue date Mar 10, 1998
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Grant
UV crosslinking compound, alignment film for LCD component and LCD...
- Patent number 5,705,096
- Issue date Jan 6, 1998
- Alps Electric Co., Ltd.
- Mitsuru Kano
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Alignment layer for liquid crystal element and method of producing...
- Patent number 5,486,403
- Issue date Jan 23, 1996
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Grant
Orientation film of liquid crystal having bilaterally asymmetric ri...
- Patent number 5,438,421
- Issue date Aug 1, 1995
- Alps Electric Co., Ltd.
- Kiyomi Sugawara
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Anti-reflective structure, anti-reflective film having the same, li...
- Publication number 20050266176
- Publication date Dec 1, 2005
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Application
Resin optical component mold having minute concavo-convex portions...
- Publication number 20050023433
- Publication date Feb 3, 2005
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
Illumination device, tablet, and liquid crystal display
- Publication number 20040257484
- Publication date Dec 23, 2004
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Application
Anti-reflective structure, illuminating device, liquid crystal disp...
- Publication number 20040105646
- Publication date Jun 3, 2004
- Alps Electric Co., Ltd.
- Tetsuya Fukuda
- G02 - OPTICS
Information Patent Application
Light guide plate having anti-reflection layer and a method of manu...
- Publication number 20030123244
- Publication date Jul 3, 2003
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS
Information Patent Application
Photo-conductor plate reduced in light reflection, and surface emit...
- Publication number 20020057399
- Publication date May 16, 2002
- Alps Electric Co., Ltd.
- Yoshihiko Ishitaka
- G02 - OPTICS

Yoshihiko Ishitaka

Person

Patents Grantslast 30 patents

Light guide plate having anti-reflection layer and a method of manu...

Surface light-emitting device having light-guide panel wherein ligh...

Photo-conductor plate reduced in light reflection, and surface emit...

Reflection type liquid crystal display device wherein the organic f...

Liquid crystal display device

Liquid crystal display with corrugated reflective surface

Reflective type liquid crystal display

Liquid crystal display with corrugated reflective surface

Liquid crystal display

UV crosslinking compound, alignment film for LCD component and LCD...

Alignment layer for liquid crystal element and method of producing...

Orientation film of liquid crystal having bilaterally asymmetric ri...

Patents Applicationslast 30 patents

Anti-reflective structure, anti-reflective film having the same, li...

Resin optical component mold having minute concavo-convex portions...

Illumination device, tablet, and liquid crystal display

Anti-reflective structure, illuminating device, liquid crystal disp...

Light guide plate having anti-reflection layer and a method of manu...

Photo-conductor plate reduced in light reflection, and surface emit...