Shigeta Ueda

Person

Hitachi-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Synchronization system and synchronization method of multisystem co...
- Patent number 7,158,521
- Issue date Jan 2, 2007
- Hitachi, Ltd.
- Yuichiro Morita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Dynamo-electric machine having a rotor with first and second axiall...
- Patent number 6,975,055
- Issue date Dec 13, 2005
- Hitachi, Ltd.
- Kim Houng Joong
- B61 - RAILWAYS
Information Patent Grant
Semiconductor power converting apparatus
- Patent number 6,809,561
- Issue date Oct 26, 2004
- Hitachi, Ltd.
- Shuji Katoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Semiconductor power conversion apparatus
- Patent number 6,727,516
- Issue date Apr 27, 2004
- Hitachi, Ltd.
- Shuji Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor power conversion apparatus
- Patent number 6,717,177
- Issue date Apr 6, 2004
- Hitachi, Ltd.
- Shuji Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gate driver for MOS control semiconductor devices
- Patent number 6,703,874
- Issue date Mar 9, 2004
- Hitachi, Ltd.
- Shuji Katoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Wind power generation system
- Patent number 6,541,877
- Issue date Apr 1, 2003
- Hitachi, Ltd.
- Houng Joong Kim
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Power conversion apparatus
- Patent number 6,490,182
- Issue date Dec 3, 2002
- Hitachi, Ltd.
- Shuji Katoh
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Flat semiconductor device and power converter employing the same
- Patent number 6,452,261
- Issue date Sep 17, 2002
- Hitachi, Ltd.
- Hironori Kodama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Synchronization system and synchronization method of multisystem co...
- Patent number 6,389,041
- Issue date May 14, 2002
- Hitachi, Ltd.
- Yuichiro Morita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Phase synchronization system for connecting a power converter to a...
- Patent number 6,304,468
- Issue date Oct 16, 2001
- Hitachi, Ltd.
- Masaya Ichinose
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Replicated controller and fault recovery method thereof
- Patent number 6,038,683
- Issue date Mar 14, 2000
- Hitachi, Ltd.
- Kotaro Shimamura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Large capacity variable speed PWM spatial vector type sub-harmonic...
- Patent number 5,298,848
- Issue date Mar 29, 1994
- Hitachi, Ltd.
- Shigeta Ueda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for inverter for driving AC motor
- Patent number 4,965,504
- Issue date Oct 23, 1990
- Hitachi, Ltd.
- Shigeta Ueda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric power converter
- Patent number 4,926,306
- Issue date May 15, 1990
- Hitachi, Ltd.
- Shigeta Ueda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus for controlling power transducers of the pulse width modu...
- Patent number 4,829,416
- Issue date May 9, 1989
- Hitachi, Ltd.
- Hiromi Inaba
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current-type converter apparatus
- Patent number 4,787,021
- Issue date Nov 22, 1988
- Hitachi, Ltd.
- Sadao Hokari
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus for controlling AC elevators
- Patent number 4,779,709
- Issue date Oct 25, 1988
- Hitachi, Ltd.
- Nobuo Mitsui
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current-type converter protecting apparatus
- Patent number 4,757,436
- Issue date Jul 12, 1988
- Hitachi, Ltd.
- Shigeta Ueda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current-source power converting apparatus with self-extinction devices
- Patent number 4,672,520
- Issue date Jun 9, 1987
- Hitachi, Ltd.
- Shigeta Ueda
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Control circuit for power converter apparatus
- Patent number 4,599,685
- Issue date Jul 8, 1986
- Hitachi, Ltd.
- Mitsuyuki Hombu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus for repeatedly applying short-circuit pulses to a current...
- Patent number 4,581,693
- Issue date Apr 8, 1986
- Hitachi, Ltd.
- Shigeta Ueda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gate control circuit for current-type inverter apparatus
- Patent number 4,549,259
- Issue date Oct 22, 1985
- Hitachi, Ltd.
- Shigeta Ueda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Transport system and dynamo-electric machine
- Publication number 20060033402
- Publication date Feb 16, 2006
- Hitachi, Ltd
- Houng Joon Kim
- B61 - RAILWAYS
Information Patent Application
Semiconductor power converting apparatus
- Publication number 20040027193
- Publication date Feb 12, 2004
- Shuji Katoh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Semiconductor power conversion apparatus
- Publication number 20030201516
- Publication date Oct 30, 2003
- Hitachi, Ltd
- Shuji Katoh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Gate driver for MOS control semiconductor devices
- Publication number 20030197533
- Publication date Oct 23, 2003
- Shuji Katoh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Semiconductor power converting apparatus
- Publication number 20030042939
- Publication date Mar 6, 2003
- Shuji Kato
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Semiconductor power conversion apparatus
- Publication number 20030045041
- Publication date Mar 6, 2003
- Shuji Katoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electric power variation compensating device
- Publication number 20030015876
- Publication date Jan 23, 2003
- Masaya Ichinose
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Application
Flat semiconductor device and power converter employing the same
- Publication number 20020145188
- Publication date Oct 10, 2002
- Hironori Kodama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Power conversion apparatus
- Publication number 20020131276
- Publication date Sep 19, 2002
- Hitachi, Ltd.
- Shuji Katoh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Transport system and dynamo-electric machine
- Publication number 20020117926
- Publication date Aug 29, 2002
- Hitachi, Ltd.
- Kim Houng Joong
- B61 - RAILWAYS
Information Patent Application
Wind power generation system
- Publication number 20020117861
- Publication date Aug 29, 2002
- Hitachi, Ltd.
- Houng Joong Kim
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Application
Synchronization system and synchronization method of multisystem co...
- Publication number 20020114356
- Publication date Aug 22, 2002
- Hitachi, Ltd.
- Yuichiro Morita
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Power converter system and method of controlling power converter
- Publication number 20010005321
- Publication date Jun 28, 2001
- Masaya Ichinose
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Shigeta Ueda

Person

Patents Grantslast 30 patents

Synchronization system and synchronization method of multisystem co...

Dynamo-electric machine having a rotor with first and second axiall...

Semiconductor power converting apparatus

Semiconductor power conversion apparatus

Semiconductor power conversion apparatus

Gate driver for MOS control semiconductor devices

Wind power generation system

Power conversion apparatus

Flat semiconductor device and power converter employing the same

Synchronization system and synchronization method of multisystem co...

Phase synchronization system for connecting a power converter to a...

Replicated controller and fault recovery method thereof

Large capacity variable speed PWM spatial vector type sub-harmonic...

Control apparatus for inverter for driving AC motor

Electric power converter

Apparatus for controlling power transducers of the pulse width modu...

Current-type converter apparatus

Apparatus for controlling AC elevators

Current-type converter protecting apparatus

Current-source power converting apparatus with self-extinction devices

Control circuit for power converter apparatus

Apparatus for repeatedly applying short-circuit pulses to a current...

Gate control circuit for current-type inverter apparatus

Patents Applicationslast 30 patents

Transport system and dynamo-electric machine

Semiconductor power converting apparatus

Semiconductor power conversion apparatus

Gate driver for MOS control semiconductor devices

Semiconductor power converting apparatus

Semiconductor power conversion apparatus

Electric power variation compensating device

Flat semiconductor device and power converter employing the same

Power conversion apparatus

Transport system and dynamo-electric machine

Wind power generation system

Synchronization system and synchronization method of multisystem co...

Power converter system and method of controlling power converter