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Nobuo Suematsu
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Light guiding plate and backlight apparatus
Patent number
7,465,084
Issue date
Dec 16, 2008
Sony Corporation
Yoshinari Kawashima
G02 - OPTICS
Information
Patent Grant
Optical element, its manufacturing method and optical element manuf...
Patent number
6,721,097
Issue date
Apr 13, 2004
Sony Corporation
Yoshinari Kawashima
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Optical element, its manufacturing method and optical element manuf...
Patent number
6,552,863
Issue date
Apr 22, 2003
Sony Corporation
Yoshinari Kawashima
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Apparatus for correcting and holding front surface of sheet
Patent number
5,812,407
Issue date
Sep 22, 1998
Sony Corporation
Shuzo Sato
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
Light guiding plate and backlight apparatus
Publication number
20050117370
Publication date
Jun 2, 2005
Yoshinari Kawashima
G02 - OPTICS
Information
Patent Application
Optical element, its manufacturing method and optical element manuf...
Publication number
20020134751
Publication date
Sep 26, 2002
Yoshinari Kawashima
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL