Akio Ito

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Hitachi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Power distribution panel switch gear and a monitoring and control s...
- Patent number 6,947,813
- Issue date Sep 20, 2005
- Hitachi, Ltd.
- Masashi Sugihara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Distribution panel switch gear and monitoring and control system ha...
- Patent number 6,035,247
- Issue date Mar 7, 2000
- Hitachi, Ltd.
- Masashi Sugihara
- G05 - CONTROLLING REGULATING
Information Patent Grant
Protecting apparatus for secondary excitation type variable speed A...
- Patent number 4,812,729
- Issue date Mar 14, 1989
- Hitachi Ltd.
- Akio Ito
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for AC motor/generator of secondary AC excitation type
- Patent number 4,742,288
- Issue date May 3, 1988
- Hitachi, Ltd.
- Osamu Sugimoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROVIDING SERVER, PROGRAM, INFORMATION PROVIDING METHOD...
- Publication number 20090327394
- Publication date Dec 31, 2009
- Tadashi KAJI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Power distribution panel switch gear and a monitoring and control s...
- Publication number 20040162643
- Publication date Aug 19, 2004
- Masashi Sugihara
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Power distribution panel switch gear and a monitoring and control s...
- Publication number 20030229405
- Publication date Dec 11, 2003
- Masashi Sugihara
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...