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Takanari Kusafuka
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Gifu, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical disk with pattern and fabrication method thereof
Patent number
6,735,166
Issue date
May 11, 2004
Sanyo Electric Co., LTD
Takanari Kusafuka
G11 - INFORMATION STORAGE
Information
Patent Grant
Light guide plate, surface light source using the light guide plate...
Patent number
6,273,577
Issue date
Aug 14, 2001
Sanyo Electric Co., Ltd.
Youichiro Goto
G02 - OPTICS
Information
Patent Grant
Light guide plate, surface light source and display using the same
Patent number
6,250,767
Issue date
Jun 26, 2001
Sanyo Electric Co. Ltd.
Takanari Kusafuka
G02 - OPTICS
Information
Patent Grant
Method of producing lightguide plate for surface light source, ligh...
Patent number
6,132,652
Issue date
Oct 17, 2000
Sanyo Electric Co., Ltd.
Masahiro Higuchi
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Light guide plate and surface light source using the light guide plate
Patent number
5,999,685
Issue date
Dec 7, 1999
Sanyo Electric Co., Ltd.
Youichiro Goto
G02 - OPTICS
Information
Patent Grant
Optical disc manufacturing apparatus
Patent number
5,997,276
Issue date
Dec 7, 1999
Sanyo Electric Co., Ltd.
Kenji Torazawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Optical disc and discarding method thereof
Publication number
20050286398
Publication date
Dec 29, 2005
SANYO ELECTRIC CO., LTD.
Masahiro Higuchi
G11 - INFORMATION STORAGE