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Katsumasa Yoshii
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Fukushima-ken, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Reflector used in LCD devices having a plurality of convace portion...
Patent number
7,542,113
Issue date
Jun 2, 2009
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector providing particularly high reflectance in an intended vi...
Patent number
7,515,226
Issue date
Apr 7, 2009
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector providing particularly high reflectance in an intended vi...
Patent number
7,471,356
Issue date
Dec 30, 2008
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector comprising a plurality of concave portions and liquid cry...
Patent number
7,388,634
Issue date
Jun 17, 2008
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector and liquid crystal display
Patent number
7,321,407
Issue date
Jan 22, 2008
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector and liquid crystal display device
Patent number
7,312,842
Issue date
Dec 25, 2007
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Transflective film and liquid crystal display device
Patent number
7,245,339
Issue date
Jul 17, 2007
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector providing particularly high reflectance in an intended vi...
Patent number
7,123,324
Issue date
Oct 17, 2006
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector and liquid crystal display device
Patent number
6,966,662
Issue date
Nov 22, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Active matrix display device with asymmetrical reflection, and insu...
Patent number
6,963,381
Issue date
Nov 8, 2005
Alps Electronic Co., Ltd.
Mitsuru Kano
G02 - OPTICS
Information
Patent Grant
Reflector which appears bright when viewed at specific angle and re...
Patent number
6,947,107
Issue date
Sep 20, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device with improved viewing angle properly...
Patent number
6,912,028
Issue date
Jun 28, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector which exhibits good reflectance over wide angle range and...
Patent number
6,863,410
Issue date
Mar 8, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
LCD with irregular reflection surface reflector and light scatterin...
Patent number
6,864,934
Issue date
Mar 8, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector which exhibits good reflectance over wide angle range and...
Patent number
6,829,094
Issue date
Dec 7, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector providing particularly high reflectance in an intended vi...
Patent number
6,750,930
Issue date
Jun 15, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
External reflective type liquid crystal display having substrate wi...
Patent number
6,734,934
Issue date
May 11, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflector which exhibits good reflectance over wide angle range and...
Patent number
6,695,454
Issue date
Feb 24, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Reflection type liquid crystal display device in which oblique moir...
Patent number
6,686,982
Issue date
Feb 3, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device with improved viewing angle property...
Patent number
6,606,139
Issue date
Aug 12, 2003
Alps Electric Co., Ltd.
Katsumasa Yoshii
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-...
Patents Applications
last 30 patents
Information
Patent Application
REFLECTING PLATE AND LIQUID CRYSTAL DISPLAY APPARATUS
Publication number
20080094538
Publication date
Apr 24, 2008
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector and liquid crystal display device using the same
Publication number
20050231663
Publication date
Oct 20, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector and liquid crystal display device
Publication number
20050219850
Publication date
Oct 6, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector and liquid-crystal display
Publication number
20050157228
Publication date
Jul 21, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Transflective film and liquid crystal display device
Publication number
20050099561
Publication date
May 12, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector and liquid crystal display device using the same
Publication number
20050083456
Publication date
Apr 21, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Color liquid crystal display device
Publication number
20050073634
Publication date
Apr 7, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Transflective liquid crystal display panel, transflective liquid cr...
Publication number
20050012880
Publication date
Jan 20, 2005
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector providing particularly high reflectance in an intended vi...
Publication number
20040257662
Publication date
Dec 23, 2004
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector and liquid crystal display device
Publication number
20040218119
Publication date
Nov 4, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Transflective film and liquid crystal display device
Publication number
20040189903
Publication date
Sep 30, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
External reflective type liquid crystal display
Publication number
20040169800
Publication date
Sep 2, 2004
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector and liquid crystal display device
Publication number
20040141114
Publication date
Jul 22, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector and liquid crystal display
Publication number
20040070710
Publication date
Apr 15, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector which exhibits good reflectance over wide angle range and...
Publication number
20040057136
Publication date
Mar 25, 2004
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector providing particularly high reflectance in an intended vi...
Publication number
20040056996
Publication date
Mar 25, 2004
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector providing particularly high reflectance in an intended vi...
Publication number
20040056997
Publication date
Mar 25, 2004
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector which exhibits good reflectance over wide angle range and...
Publication number
20040057137
Publication date
Mar 25, 2004
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector and reflective liquid crystal display device provided wit...
Publication number
20040036825
Publication date
Feb 26, 2004
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Active matrix display device
Publication number
20040017528
Publication date
Jan 29, 2004
Alps Electric Co., Ltd.
Mitsuru Kano
G02 - OPTICS
Information
Patent Application
Active matrix display device
Publication number
20040012726
Publication date
Jan 22, 2004
Alps Electric Co., Ltd.
Mitsuru Kano
G02 - OPTICS
Information
Patent Application
Liquid crystal display device with improved viewing angle property...
Publication number
20030210368
Publication date
Nov 13, 2003
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
External reflective type liquid crystal display
Publication number
20030128318
Publication date
Jul 10, 2003
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector which exhibits good reflectance over wide angle range and...
Publication number
20030043322
Publication date
Mar 6, 2003
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Liquid crystal display device with improved viewing angle property...
Publication number
20030011730
Publication date
Jan 16, 2003
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector which appears bright when viewed at specific angle and re...
Publication number
20030001995
Publication date
Jan 2, 2003
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS
Information
Patent Application
Reflector providing particularly high reflectance in an intended vi...
Publication number
20020030774
Publication date
Mar 14, 2002
Alps Electric Co., Ltd.
Katsumasa Yoshii
G02 - OPTICS