Hiroshi Ezawa

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Sagamihara, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical pick-up apparatus having low coefficient of friction betwee...
- Patent number 5,875,166
- Issue date Feb 23, 1999
- Olympus Optical Co., Ltd.
- Tetsuo Ikegame
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical system driving mechanism for an optical system driving appa...
- Patent number 5,706,272
- Issue date Jan 6, 1998
- Olympus Optical Co., Ltd.
- Hiroshi Ezawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical system driving apparatus
- Patent number 5,663,843
- Issue date Sep 2, 1997
- Olympus Optical Company, Ltd.
- Hiroshi Ezawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Signal detector for an optical information reproducing apparatus
- Patent number 5,598,389
- Issue date Jan 28, 1997
- Olympus Optical Co., Ltd.
- Junichi Nakano
- G11 - INFORMATION STORAGE