Shigehiro Kayukawa

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
System for controlling AC excited synchronous machine
- Patent number 5,148,093
- Issue date Sep 15, 1992
- Hitachi, Ltd.
- Akira Bando
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
AC-excited generator/motor apparatus
- Patent number 4,980,629
- Issue date Dec 25, 1990
- Hitachi, Ltd.
- Akira Bando
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable-speed generator/motor system
- Patent number 4,812,730
- Issue date Mar 14, 1989
- Hitachi, Ltd.
- Hiroto Nakagawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC ROTATING MACHINE
- Publication number 20120229144
- Publication date Sep 13, 2012
- Hitachi, Ltd.
- Akihito NAKAHARA
- G01 - MEASURING TESTING
Information Patent Application
Brushless alternating-current generating apparatus and method for m...
- Publication number 20020047356
- Publication date Apr 25, 2002
- Hideo Tanahashi
- G01 - MEASURING TESTING