Takao Kuwabara

Person

Chiyoda-ku, Tokyo 100-8220, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Turbine apparatus and governor for turbine
- Patent number 7,092,795
- Issue date Aug 15, 2006
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Turbine apparatus and governor for turbine
- Patent number 7,072,744
- Issue date Jul 4, 2006
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Pump turbine
- Patent number 6,846,154
- Issue date Jan 25, 2005
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Pump turbine, method of controlling thereof, and method of stopping...
- Patent number 6,602,044
- Issue date Aug 5, 2003
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method of controlling a pump turbine
- Patent number 6,336,322
- Issue date Jan 8, 2002
- Hitachi, Ltd.
- Takao Kuwabara
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Reversible pump-turbine system
- Patent number 6,250,887
- Issue date Jun 26, 2001
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Pump-turbine
- Patent number 6,210,100
- Issue date Apr 3, 2001
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Pump-turbine
- Patent number 6,042,331
- Issue date Mar 28, 2000
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Variable speed pumping-up generator
- Patent number 5,561,358
- Issue date Oct 1, 1996
- Hitachi, Ltd.
- Takao Kuwabara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of counterflow through a pump and method of controlling the...
- Patent number 5,456,115
- Issue date Oct 10, 1995
- Hitachi, Ltd.
- Takao Kuwabara
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Pump system operable by variable-speed control
- Patent number 5,160,244
- Issue date Nov 3, 1992
- Hitachi, Ltd.
- Takao Kuwabara
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Method of controlling the operation of a pump in a pumping installa...
- Patent number 5,090,872
- Issue date Feb 25, 1992
- Hitachi Ltd.
- Takao Kuwabara
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Variable speed pumping-up system
- Patent number 5,026,256
- Issue date Jun 25, 1991
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Control system for a variable speed hydro-power plant apparatus
- Patent number 4,920,277
- Issue date Apr 24, 1990
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Automatic control system
- Patent number 4,874,999
- Issue date Oct 17, 1989
- Hitachi, Ltd.
- Takao Kuwabara
- G05 - CONTROLLING REGULATING
Information Patent Grant
Control system for variable speed water-wheel generator apparatus
- Patent number 4,823,018
- Issue date Apr 18, 1989
- Hitachi Ltd.
- Takao Kuwabara
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable-speed pumped-storage power generating system
- Patent number 4,816,696
- Issue date Mar 28, 1989
- Hitachi, Ltd.
- Akihiro Sakayori
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Control apparatus for variable-speed hydraulic power generating system
- Patent number 4,754,156
- Issue date Jun 28, 1988
- Hitachi, Ltd.
- Junichi Shiozaki
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Variable speed pumping-up electrical power system
- Patent number 4,743,827
- Issue date May 10, 1988
- Hitachi, Ltd.
- Junichi Shiozaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of operating multistage hydraulic machinery
- Patent number 4,629,393
- Issue date Dec 16, 1986
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method and apparatus for controlling variable-speed hydraulic power...
- Patent number 4,625,125
- Issue date Nov 25, 1986
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Fail-safe system for a reversible pump-turbine apparatus
- Patent number 4,624,622
- Issue date Nov 25, 1986
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method of and system for controlling hydraulic turbine
- Patent number 4,475,334
- Issue date Oct 9, 1984
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Rotary type pumping machine
- Patent number 4,472,105
- Issue date Sep 18, 1984
- Hitachi, Ltd.
- Keitaro Takiguchi
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Operation control method for multistage regulated hydraulic machine
- Patent number 4,472,104
- Issue date Sep 18, 1984
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method of controlling wicket gates of a pump-turbine
- Patent number 4,382,745
- Issue date May 10, 1983
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method of controlling pump turbine
- Patent number 4,354,800
- Issue date Oct 19, 1982
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Control apparatus and method of operating the same
- Patent number 4,303,370
- Issue date Dec 1, 1981
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method of controlling wicket gates of a pump-turbine
- Patent number 4,253,794
- Issue date Mar 3, 1981
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Method for starting hydraulic turbine generator
- Patent number 4,201,925
- Issue date May 6, 1980
- Hitachi, Ltd.
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents

Information Patent Application
Turbine apparatus and governor for turbine
- Publication number 20050267644
- Publication date Dec 1, 2005
- Hitachi, Ltd
- Takao Kuwabara
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Turbine apparatus and governor for turbine
- Publication number 20040115048
- Publication date Jun 17, 2004
- Takao Kuwabara
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Pump turbine
- Publication number 20020146314
- Publication date Oct 10, 2002
- Takao Kuwabara
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Takao Kuwabara

Person

Patents Grantslast 30 patents

Turbine apparatus and governor for turbine

Turbine apparatus and governor for turbine

Pump turbine

Pump turbine, method of controlling thereof, and method of stopping...

Method of controlling a pump turbine

Reversible pump-turbine system

Pump-turbine

Pump-turbine

Variable speed pumping-up generator

Method of counterflow through a pump and method of controlling the...

Pump system operable by variable-speed control

Method of controlling the operation of a pump in a pumping installa...

Variable speed pumping-up system

Control system for a variable speed hydro-power plant apparatus

Automatic control system

Control system for variable speed water-wheel generator apparatus

Variable-speed pumped-storage power generating system

Control apparatus for variable-speed hydraulic power generating system

Variable speed pumping-up electrical power system

Method of operating multistage hydraulic machinery

Method and apparatus for controlling variable-speed hydraulic power...

Fail-safe system for a reversible pump-turbine apparatus

Method of and system for controlling hydraulic turbine

Rotary type pumping machine

Operation control method for multistage regulated hydraulic machine

Method of controlling wicket gates of a pump-turbine

Method of controlling pump turbine

Control apparatus and method of operating the same

Method of controlling wicket gates of a pump-turbine

Method for starting hydraulic turbine generator

Patents Applicationslast 30 patents

Turbine apparatus and governor for turbine

Turbine apparatus and governor for turbine

Pump turbine