Masami Yuasa

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Chofu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical pickup apparatus, optical disc apparatus, and tracking cont...
- Patent number 7,099,243
- Issue date Aug 29, 2006
- Sony Corporation
- Tsutomu Maruyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Output control apparatus of semiconductor laser device
- Patent number 5,771,220
- Issue date Jun 23, 1998
- Sony Corporation
- Masami Yuasa
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording apparatus with stable disc support and high magnetic flux...
- Patent number 4,599,663
- Issue date Jul 8, 1986
- Sony Corporation
- Etsuro Saito
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Optical pickup apparatus, optical disc apparatus, and tracking cont...
- Publication number 20040130984
- Publication date Jul 8, 2004
- Tsutomu Maruyama
- G11 - INFORMATION STORAGE