Yasuaki Yoshioka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic recording powder having a high coercive force at room temp...
- Patent number 5,211,770
- Issue date May 18, 1993
- Mitsubishi Materials Corporation
- Ginya Ishiguro
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY