Eiji Okubo

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical element feeding device and optical pickup unit using the same
- Patent number 7,995,450
- Issue date Aug 9, 2011
- Hitachi Media Electronics Co., Ltd.
- Seiji Ono
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical element feeding device driving method and optical disk appa...
- Patent number 7,675,832
- Issue date Mar 9, 2010
- Hitachi Media Electronics Co., Ltd.
- Seiji Ono
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL ELEMENT FEEDING DEVICE AND OPTICAL PICKUP UNIT USING THE SAME
- Publication number 20070226759
- Publication date Sep 27, 2007
- Seiji Ono
- G02 - OPTICS
Information Patent Application
OPTICAL ELEMENT FEEDING DEVICE DRIVING METHOD AND OPTICAL DISK APPA...
- Publication number 20070206460
- Publication date Sep 6, 2007
- Seiji Ono
- G11 - INFORMATION STORAGE