Toshiyuki Kawaguchi

Person

Inuyama City, Aichi Pref., JP

People

Patents Grantslast 30 patents

Information Patent Grant
System utilizing optical current sensors for detecting fault locati...
- Patent number 5,243,293
- Issue date Sep 7, 1993
- NGK Insulators, Ltd.
- Takashi Isozaki
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for detecting faults on power transmission lines
- Patent number 5,202,812
- Issue date Apr 13, 1993
- NGK Insulators, Ltd.
- Katsuro Shinoda
- G01 - MEASURING TESTING
Information Patent Grant
Optical current transformer
- Patent number 5,103,164
- Issue date Apr 7, 1992
- Toshiyuki Kawaguchi
- G01 - MEASURING TESTING
Information Patent Grant
Helmet with two-way radio communication faculty
- Patent number 4,833,726
- Issue date May 23, 1989
- NGK Insulators, Ltd.
- Katsuro Shinoda
- A42 - HEADWEAR
Information Patent Grant
Optical fiber-containing insulators
- Patent number 4,810,836
- Issue date Mar 7, 1989
- NGK Insulators, Ltd.
- Katsuro Shinoda
- G02 - OPTICS
Information Patent Grant
System for supervising and guiding persons in construction
- Patent number 4,709,330
- Issue date Nov 24, 1987
- NGK Insulators Ltd.
- Shigeo Yokoi
- G08 - SIGNALLING
Information Patent Grant
Work helmet having transmitter-receiver for light signal
- Patent number 4,648,131
- Issue date Mar 3, 1987
- NGK Insulators, Ltd.
- Toshiyuki Kawaguchi
- A42 - HEADWEAR
Information Patent Grant
Rod-type insulator having improved withstand voltage characteristic...
- Patent number 4,174,464
- Issue date Nov 13, 1979
- NGK Insulators, Ltd.
- Toshiyuki Kawaguchi
- H01 - BASIC ELECTRIC ELEMENTS

Toshiyuki Kawaguchi

Person

Patents Grantslast 30 patents

System utilizing optical current sensors for detecting fault locati...

Apparatus for detecting faults on power transmission lines

Optical current transformer

Helmet with two-way radio communication faculty

Optical fiber-containing insulators

System for supervising and guiding persons in construction

Work helmet having transmitter-receiver for light signal

Rod-type insulator having improved withstand voltage characteristic...