Kyokuto Boeki Kaisha, Ltd.

Follow

Organization

Tokyo, JP

Organizations

Please log in for detailed analytics

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
Information Patent Grant
Process for excavating and constructing tunnel and excavating device
- Patent number 4,139,320
- Issue date Feb 13, 1979
- Japanese National Railways
- Toshiyuki Ueno
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks