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Junzo Kumakura
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Kanagawa, JP
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Patents Grants
last 30 patents
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Patent Grant
Adjustment optical disc for optical pick-up, adjustment method for...
Patent number
7,020,059
Issue date
Mar 28, 2006
Sony Corporation
Yasuo Osada
G11 - INFORMATION STORAGE
Information
Patent Grant
Adjustment optical disc for optical pick-up, adjustment method for...
Patent number
7,012,868
Issue date
Mar 14, 2006
Sony Corporation
Yasuo Osada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk for adjusting optical pickup, method for adjusting opt...
Patent number
7,006,410
Issue date
Feb 28, 2006
Sony Corporation
Yasuo Osada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical pickup device and optical disc recording and/or reproducing...
Patent number
6,430,143
Issue date
Aug 6, 2002
Sony Corporation
Yoshihiro Kajiyama
G11 - INFORMATION STORAGE
Information
Patent Grant
Disc recording and/or reproducing devices with disc exchanging func...
Patent number
6,396,794
Issue date
May 28, 2002
Sony Corporation
Tàkashi Tsugami
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk cartridge loading device for recording and/or reproducing appa...
Patent number
6,118,618
Issue date
Sep 12, 2000
Sony Corporation
Junzo Kumakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk changer player with stocker between loading/unloading position...
Patent number
5,384,760
Issue date
Jan 24, 1995
Sony Corporation
Junzo Kumakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Device for simultaneously loading two different kinds of recording...
Patent number
5,301,177
Issue date
Apr 5, 1994
Sony Corporation
Junzo Kumakura
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
Adjustment optical disc for optical pick-up, adjustment method for...
Publication number
20050185554
Publication date
Aug 25, 2005
SONY CORPORATION
Yasuo Osada
G11 - INFORMATION STORAGE
Information
Patent Application
Adjustment optical disc for optical pick-up, adjustment method for...
Publication number
20050185555
Publication date
Aug 25, 2005
SONY CORPORATION
Yasuo Osada
G11 - INFORMATION STORAGE
Information
Patent Application
Optical disk for adjusting optical pickup, method for adjusting opt...
Publication number
20020126589
Publication date
Sep 12, 2002
Yasuo Osada
G11 - INFORMATION STORAGE