Yojiro Sumi

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Reproducing device and optical path length servo control method
- Patent number 8,553,516
- Issue date Oct 8, 2013
- Sony Corporation
- Takahiro Miura
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording medium and reproducing apparatus
- Patent number 8,488,430
- Issue date Jul 16, 2013
- Sony Corportation
- Kimihiro Saito
- G11 - INFORMATION STORAGE
Information Patent Grant
Pickup apparatus, optical recording and reproduction apparatus, and...
- Patent number 8,305,866
- Issue date Nov 6, 2012
- Sony Corporation
- Norihiro Tanabe
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL RECORDING MEDIUM AND METHOD FOR MANUFACTURING OPTICAL RECOR...
- Publication number 20140044940
- Publication date Feb 13, 2014
- SONY CORPORATION
- Tomoya Ikuta
- G11 - INFORMATION STORAGE
Information Patent Application
RECORDING MEDIUM AND REPRODUCING APPARATUS
- Publication number 20120188864
- Publication date Jul 26, 2012
- SONY CORPORATION
- Kimihiro Saito
- G11 - INFORMATION STORAGE
Information Patent Application
RECORDING MEDIUM, METHOD OF INITIALIZING THE SAME, INITIALIZING DEV...
- Publication number 20120127848
- Publication date May 24, 2012
- SONY CORPORATION
- Kimihiro Saito
- G11 - INFORMATION STORAGE
Information Patent Application
REPRODUCING DEVICE AND OPTICAL PATH LENGTH SERVO CONTROL METHOD
- Publication number 20120069722
- Publication date Mar 22, 2012
- SONY CORPORATION
- Takahiro Miura
- G11 - INFORMATION STORAGE
Information Patent Application
PICKUP APPARATUS, OPTICAL RECORDING AND REPRODUCTION APPARATUS, AND...
- Publication number 20110134742
- Publication date Jun 9, 2011
- SONY CORPORATION
- Norihiro Tanabe
- G11 - INFORMATION STORAGE