Yonghai Zhou

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Patents Grantslast 30 patents

Information Patent Grant
Fixing structure for optical element and optical head device
- Patent number 7,359,308
- Issue date Apr 15, 2008
- NIDEC SANKYO CORPORATION
- Yonghai Zhou
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Fixing structure for optical element and optical head device
- Publication number 20050036433
- Publication date Feb 17, 2005
- Yonghai Zhou
- G11 - INFORMATION STORAGE