Sadahiko Niwa

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for diagnosing overheating of an electric machine
- Patent number 4,373,376
- Issue date Feb 15, 1983
- Hitachi, Ltd.
- Kiyoshi Narato
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for diagnosing local overheating in a rotary e...
- Patent number 4,364,032
- Issue date Dec 14, 1982
- Hitachi, Ltd.
- Kiyoshi Narato
- G01 - MEASURING TESTING