Yasushi Ohkawa

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Nagoya-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polymer SP insulator
- Patent number 7,094,974
- Issue date Aug 22, 2006
- NGK Insulators, Ltd.
- Yasushi Ohkawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Securing method of polymer insulator and die used for this method
- Patent number 6,055,717
- Issue date May 2, 2000
- NGK Insulators, Ltd.
- Itsushi Nakamura
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
POLYMER SP INSULATOR
- Publication number 20060131063
- Publication date Jun 22, 2006
- NGK Insulators, Ltd.
- Yasushi Ohkawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Polymer insulator
- Publication number 20030217862
- Publication date Nov 27, 2003
- NGK Insulators, Ltd.
- Yasushi Ohkawa
- H01 - BASIC ELECTRIC ELEMENTS