Hideki Otsuka

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Hiratsuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical head unit for guiding a light beam more reliable to a cente...
- Patent number 5,729,521
- Issue date Mar 17, 1998
- Kabushiki Kaisha Toshiba
- Hideki Otsuka
- G11 - INFORMATION STORAGE