Masaaki Ozawa

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Hoya, JP

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Patents Grantslast 30 patents

Information Patent Grant
Surge locating system of power transmission line and method thereof
- Patent number 6,259,255
- Issue date Jul 10, 2001
- Tohoku Electric Power Co., Inc.
- Sakari Ohira
- G01 - MEASURING TESTING
Information Patent Grant
System for discriminating kinds of surges on power transmission lines
- Patent number 5,508,619
- Issue date Apr 16, 1996
- Kyokuto Boeki Kaisha
- Masaaki Ozawa
- G01 - MEASURING TESTING
Information Patent Grant
System for detecting defective point on power transmission line by...
- Patent number 5,070,537
- Issue date Dec 3, 1991
- Tohoku Electric Power Co., Inc.
- Sakari Ohira
- G01 - MEASURING TESTING