Atsuko Fukushima

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Totsuka-ku, Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Second harmonic generator and method of fabrication thereof
- Patent number 5,274,727
- Issue date Dec 28, 1993
- Hitachi, Ltd.
- Kenchi Ito
- G02 - OPTICS
Information Patent Grant
Optical information processing apparatus and optical pickup therefor
- Patent number 5,195,070
- Issue date Mar 16, 1993
- Hitachi, Ltd.
- Masataka Shiba
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical information storing apparatus and method for production of...
- Patent number 5,191,624
- Issue date Mar 2, 1993
- Hitachi, Ltd.
- Kenchi Ito
- G02 - OPTICS
Information Patent Grant
Method and apparatus for measuring optical constants of a thin film...
- Patent number 5,125,740
- Issue date Jun 30, 1992
- Hitachi, Ltd.
- Hidemi Sato
- G01 - MEASURING TESTING
Information Patent Grant
Optical integrated circuit and optical apparatus
- Patent number 5,070,488
- Issue date Dec 3, 1991
- Atsuko Fukushima
- G02 - OPTICS