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Satoshi Kawakita
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Tokyo, JP
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Patents Grants
last 30 patents
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Patent Grant
Diffraction element, objective lens unit, optical pickup and optica...
Patent number
7,715,300
Issue date
May 11, 2010
Sony Corporation
Satoshi Kawakita
G11 - INFORMATION STORAGE
Information
Patent Grant
Diffraction element, objective lens unit, optical pickup, optical d...
Patent number
7,463,430
Issue date
Dec 9, 2008
Sony Corporation
Takatoshi Yamada
G11 - INFORMATION STORAGE
Information
Patent Grant
Lens, manufacturing method thereof, and optical pickup
Patent number
6,783,707
Issue date
Aug 31, 2004
Sony Corporation
Hiroyuki Ueda
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Lens manufacturing method thereof, and optical pickup
Patent number
6,215,591
Issue date
Apr 10, 2001
Sony Corporation
Hiroyuki Ueda
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
DIFFRACTION ELEMENT, OBJECTIVE LENS UNIT, OPTICAL PICKUP, OPTICAL D...
Publication number
20070258345
Publication date
Nov 8, 2007
SONY CORPORATION
Takatoshi Yamada
G02 - OPTICS
Information
Patent Application
OPTICAL PICKUP AND OPTICAL DISC APPARATUS
Publication number
20070247996
Publication date
Oct 25, 2007
SONY CORPORATION
Satoshi Kawakita
G11 - INFORMATION STORAGE
Information
Patent Application
DIFFRACTION ELEMENT, OBJECTIVE LENS UNIT, OPTICAL PICKUP AND OPTICA...
Publication number
20070230311
Publication date
Oct 4, 2007
SONY CORPORATION
Satoshi Kawakita
G02 - OPTICS
Information
Patent Application
DIFFRACTION ELEMENT, OPTICAL PICKUP AND OPTICAL DISC APPARATUS
Publication number
20070229930
Publication date
Oct 4, 2007
SONY CORPORATION
Jin Sato
G11 - INFORMATION STORAGE
Information
Patent Application
Lens, manufacturing method thereof, and optical pickup
Publication number
20010015849
Publication date
Aug 23, 2001
Hiroyuki Ueda
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL