Kenjiro Okamoto

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Kumano, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spindle motor and magnetic fluid seal apparatus used therefor
- Patent number 5,402,023
- Issue date Mar 28, 1995
- Nippon Densan Corporation
- Yoshiaki Nakanishi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER