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Yasuko Hayashi
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Kawasaki, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Area light source and lightguide used therefore
Patent number
7,736,045
Issue date
Jun 15, 2010
Mitsubishi Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Grant
Area light source
Patent number
7,520,652
Issue date
Apr 21, 2009
Mitsubishi Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Grant
Planar light source system and light deflecting device therefor
Patent number
7,380,969
Issue date
Jun 3, 2008
Mitsubishi Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Grant
Surface light source device and light guide used therefor
Patent number
7,226,197
Issue date
Jun 5, 2007
Mitsubishi Rayon Co., Ltd.
Yasuko Hayashi
G02 - OPTICS
Information
Patent Grant
Edge lighted device with polarization
Patent number
7,201,510
Issue date
Apr 10, 2007
Mitsubishi Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Grant
Light source device
Patent number
7,004,610
Issue date
Feb 28, 2006
Mitsubishi Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Grant
Planar light source system and light deflecting device therefor
Patent number
6,669,350
Issue date
Dec 30, 2003
Mitsubish Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Grant
Planar light source device and liquid crystal display apparatus
Patent number
6,502,947
Issue date
Jan 7, 2003
Mitsubishi Rayon Co., Ltd.
Hiroki Matsumoto
G02 - OPTICS
Information
Patent Grant
Surface light source device, and liquid crystal display device, sig...
Patent number
6,332,691
Issue date
Dec 25, 2001
Mitsubishi Rayon Co., Ltd.
Masaharu Oda
G02 - OPTICS
Information
Patent Grant
Resin sheet, process and apparatus for producing same, surface ligh...
Patent number
6,312,787
Issue date
Nov 6, 2001
Mitsubishi Rayon Co., Ltd.
Yasuko Hayashi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Surface light source device and liquid crystal display device sign...
Patent number
6,244,719
Issue date
Jun 12, 2001
Mitsubishi Rayon Co., Ltd.
Masaharu Oda
G02 - OPTICS
Information
Patent Grant
Surface light source element and liquid crystal display device, sig...
Patent number
6,099,135
Issue date
Aug 8, 2000
Mitsubishi Rayon Co., Ltd.
Masaharu Oda
G02 - OPTICS
Information
Patent Grant
Electrophotographic photosensitve member and image forming apparatus
Patent number
5,834,145
Issue date
Nov 10, 1998
Canon Kabushiki Kaisha
Kazuo Yoshinaga
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Transfer material carrying member and image-forming apparatus compr...
Patent number
5,633,702
Issue date
May 27, 1997
Canon Kabushiki Kaisha
Yasuko Hayashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Carrier for electrophotography, process for its production, two-com...
Patent number
5,573,880
Issue date
Nov 12, 1996
Canon Kabushiki Kaisha
Shinya Mayama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Area light source and lightguide used therefore
Publication number
20080232136
Publication date
Sep 25, 2008
Mitsubishi Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Application
Area light source
Publication number
20060056200
Publication date
Mar 16, 2006
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Application
Flat light source device
Publication number
20050248960
Publication date
Nov 10, 2005
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Application
Surface light source device and light guide used therefor
Publication number
20050174803
Publication date
Aug 11, 2005
Yasuko Hayashi
G02 - OPTICS
Information
Patent Application
Area light source and lightguide used therefor
Publication number
20040246697
Publication date
Dec 9, 2004
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Application
Light source device
Publication number
20040022050
Publication date
Feb 5, 2004
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Application
Planar light source system and light deflecting device therefor
Publication number
20040012945
Publication date
Jan 22, 2004
Mitsubishi Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Application
Planar light source device and liquid crystal display apparatus
Publication number
20020172030
Publication date
Nov 21, 2002
Mitsubishi Rayon Co., Ltd.
Hiroki Matsumoto
G02 - OPTICS
Information
Patent Application
Planar light source system and light deflecting device therefor
Publication number
20020163790
Publication date
Nov 7, 2002
Mitsubishi Rayon Co., Ltd.
Tomoyoshi Yamashita
G02 - OPTICS
Information
Patent Application
Surface light source device, and liquid crystal display device, sig...
Publication number
20010030861
Publication date
Oct 18, 2001
Mitsubishi Rayon Co., Ltd.
Mosaharu Oda
G02 - OPTICS