Naruto Kuwahara

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
High-efficiency power supply control apparatus for variable-speed i...
- Patent number 5,500,581
- Issue date Mar 19, 1996
- Arex Electronics Corporation
- Takefumi Hatanaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
AC-to-AC power inverter apparatus functioning without smoothing cap...
- Patent number 5,481,451
- Issue date Jan 2, 1996
- Arex Electronics Corporation
- Naruto Kuwahara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Induction motor control apparatus providing high efficiency with ra...
- Patent number 5,442,271
- Issue date Aug 15, 1995
- Arex Electronics Corporation
- Takefumi Hatanaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for controlling the supply of power to an indu...
- Patent number 5,241,256
- Issue date Aug 31, 1993
- Arex Electronics Corporation
- Takefumi Hatanaka
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Induction motor control apparatus
- Patent number 5,204,606
- Issue date Apr 20, 1993
- Arex Electronics Corp.
- Naruto Kuwahara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER