Shinichi Nagashima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Objective lens, and optical pickup device using the objective lens
- Patent number 7,170,693
- Issue date Jan 30, 2007
- Sony Corporation
- Fumisada Maeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Object lens producing device and producing method
- Patent number 6,977,782
- Issue date Dec 20, 2005
- Sony Corporation
- Fumisada Maeda
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Object lens producing device and producing method
- Publication number 20050201221
- Publication date Sep 15, 2005
- SONY CORPORATION
- Fumisada Maeda
- G02 - OPTICS
Information Patent Application
Object lens producing device and producing method
- Publication number 20040021951
- Publication date Feb 5, 2004
- Fumisada Maeda
- G02 - OPTICS
Information Patent Application
Objective lens, and optical pickup device using the objective lens
- Publication number 20030179469
- Publication date Sep 25, 2003
- Fumisada Maeda
- G11 - INFORMATION STORAGE