Yasushi Okayama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for forming oxide superconducting films with an ultrasonic w...
- Patent number 5,002,928
- Issue date Mar 26, 1991
- Toa Nenryo Kogyo Kabushiki Kaisha
- Keitaro Fukui
- H01 - BASIC ELECTRIC ELEMENTS