KAYOKO WATAI

Person

SAITAMA, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Surface light source device and liquid crystal display
- Patent number 6,309,080
- Issue date Oct 30, 2001
- Enplas Corporation
- Hiromi Sasako
- G02 - OPTICS
Information Patent Grant
Light regulation device
- Patent number 6,275,338
- Issue date Aug 14, 2001
- Enplas Corporation
- Takayuki Arai
- G02 - OPTICS
Information Patent Grant
Surface light source device of side light type
- Patent number 6,199,994
- Issue date Mar 13, 2001
- Enplas Corporation
- Kayoko Watai
- G02 - OPTICS
Information Patent Grant
Surface light source device
- Patent number 5,971,559
- Issue date Oct 26, 1999
- Enplas Corporation
- Tsuyoshi Ishikawa
- G02 - OPTICS
Information Patent Grant
Surface light source device
- Patent number 5,961,197
- Issue date Oct 5, 1999
- Enplas Corporation
- Kayoko Watai
- G02 - OPTICS
Information Patent Grant
Surface light source device of side light type
- Patent number 5,810,464
- Issue date Sep 22, 1998
- Enplas Corporation
- Tsuyoshi Ishikawa
- G02 - OPTICS
Information Patent Grant
Surface light source device of side light type
- Patent number 5,788,356
- Issue date Aug 4, 1998
- Enplas Corp.
- Kayoko Watai
- G02 - OPTICS
Information Patent Grant
Surface light source device
- Patent number 5,779,338
- Issue date Jul 14, 1998
- Enplas Corporation
- Tsuyoshi Ishikawa
- G02 - OPTICS
Information Patent Grant
Surface illuminant device
- Patent number 5,772,305
- Issue date Jun 30, 1998
- Enplas Corporation
- Tsuyoshi Ishikawa
- G02 - OPTICS
Information Patent Grant
Prismatic member with coarsened portions or triangular prismatic an...
- Patent number 5,600,455
- Issue date Feb 4, 1997
- Enplas Corporation
- Tsuyoshi Ishikawa
- G02 - OPTICS
Information Patent Grant
Surface light source device
- Patent number 5,575,549
- Issue date Nov 19, 1996
- Enplas Corporation
- Tsuyoshi Ishikawa
- G02 - OPTICS
Information Patent Grant
Surface light source device
- Patent number 5,572,411
- Issue date Nov 5, 1996
- Enplas Corporation
- Kayoko Watai
- G02 - OPTICS
Information Patent Grant
Corner supply type plane light source device
- Patent number 5,528,709
- Issue date Jun 18, 1996
- Enplas Corporation
- Yasuhiro Koike
- G02 - OPTICS
Information Patent Grant
Surface illuminant device
- Patent number 5,402,324
- Issue date Mar 28, 1995
- Enplas Corporation
- Kazuaki Yokoyama
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
SURFACE LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY
- Publication number 20020001186
- Publication date Jan 3, 2002
- HIROMI SASAKO
- G02 - OPTICS

KAYOKO WATAI

Person

Patents Grantslast 30 patents

Surface light source device and liquid crystal display

Light regulation device

Surface light source device of side light type

Surface light source device

Surface light source device

Surface light source device of side light type

Surface light source device of side light type

Surface light source device

Surface illuminant device

Prismatic member with coarsened portions or triangular prismatic an...

Surface light source device

Surface light source device

Corner supply type plane light source device

Surface illuminant device

Patents Applicationslast 30 patents

SURFACE LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY