Kiyoshi Nakamura

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method and system of controlling elevators and method and apparatus...
- Patent number 5,892,190
- Issue date Apr 6, 1999
- Hitachi, Ltd.
- Yuzo Morita
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Control system for electric vehicle
- Patent number 5,847,534
- Issue date Dec 8, 1998
- Hitachi, Ltd.
- Tokunosuke Tanamachi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Power conversion apparatus
- Patent number 5,742,493
- Issue date Apr 21, 1998
- Hitachi, Ltd.
- Satoru Ito
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control apparatus for electric vehicles
- Patent number 5,677,610
- Issue date Oct 14, 1997
- Hitachi, Ltd.
- Tokunosuke Tanamachi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Three level power converting apparatus having means for balancing D...
- Patent number 5,627,742
- Issue date May 6, 1997
- Hitachi, Ltd.
- Kiyoshi Nakata
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Electric power converting apparatus
- Patent number 5,587,891
- Issue date Dec 24, 1996
- Hitachi, Ltd.
- Kiyoshi Nakata
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Inverter control apparatus
- Patent number 5,532,569
- Issue date Jul 2, 1996
- Hitachi, Ltd.
- Tokunosuke Tanamachi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus of power converter and control apparatus of elect...
- Patent number 5,506,765
- Issue date Apr 9, 1996
- Hitachi, Ltd.
- Kiyoshi Nakata
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Multilevel inverter having voltage dividing capacitors distributed...
- Patent number 5,481,448
- Issue date Jan 2, 1996
- Hitachi, Ltd.
- Kiyoshi Nakata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric power converting apparatus
- Patent number 5,467,262
- Issue date Nov 14, 1995
- Hitachi, Ltd.
- Kiyoshi Nakata
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Group control elevator system for automatically adjusting elevator...
- Patent number 5,409,085
- Issue date Apr 25, 1995
- Hitachi, Ltd.
- Atsuya Fujino
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Information transfer system
- Patent number 5,408,607
- Issue date Apr 18, 1995
- Hitachi, Ltd.
- Mitsuyo Nishikawa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Elevator system
- Patent number 5,389,749
- Issue date Feb 14, 1995
- Hitachi, Ltd.
- Sadao Hokari
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric power converter arrangement and electric rolling stock con...
- Patent number 5,375,050
- Issue date Dec 20, 1994
- Hitachi, Ltd.
- Kiyoshi Nakata
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Power converter for converting DC voltage into AC phase voltage hav...
- Patent number 5,361,196
- Issue date Nov 1, 1994
- Hitachi, Ltd.
- Tokunosuke Tanamachi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control apparatus for suppressing a third harmonic neutral point vo...
- Patent number 5,321,599
- Issue date Jun 14, 1994
- Hitachi, Ltd.
- Tokunosuke Tanamachi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and system of controlling elevators and method and apparatus...
- Patent number 5,307,903
- Issue date May 3, 1994
- Hitachi, Ltd.
- Yuzo Morita
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Apparatus and methods for detecting number of people waiting in an...
- Patent number 5,298,697
- Issue date Mar 29, 1994
- Hitachi, Ltd.
- Masato Suzuki
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Elevator control system with image pickups in hall waiting areas an...
- Patent number 5,258,586
- Issue date Nov 2, 1993
- Hitachi, Ltd.
- Masato Suzuki
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Inverter control apparatus
- Patent number 5,250,890
- Issue date Oct 5, 1993
- Hitachi, Ltd.
- Tokunosuke Tanamachi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electron gun and cathode-ray tube
- Patent number 5,241,237
- Issue date Aug 31, 1993
- Hitachi, Ltd.
- Masayoshi Misono
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Group management control method and apparatus for an elevator system
- Patent number 5,239,141
- Issue date Aug 24, 1993
- Hitachi, Ltd.
- Toshimitsu Tobita
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Image processing apparatus having apparatus for correcting the imag...
- Patent number 5,182,776
- Issue date Jan 26, 1993
- Hitachi, Ltd.
- Masato Suzuki
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Power conversion system
- Patent number 5,177,677
- Issue date Jan 5, 1993
- Hitachi, Ltd.
- Kiyoshi Nakata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power converter with current-type inverter
- Patent number 5,155,671
- Issue date Oct 13, 1992
- Hitachi Ltd.
- Hiromi Inaba
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply system for a linear motor type transportation system
- Patent number 5,125,347
- Issue date Jun 30, 1992
- Hitachi, Ltd.
- Youji Takahashi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Apparatus and method for controlling switching elements in a PWN-co...
- Patent number 4,924,373
- Issue date May 8, 1990
- Hitachi, Ltd.
- Hiromi Inaba
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Color cathode-ray tube
- Patent number 4,885,503
- Issue date Dec 5, 1989
- Hitachi, Ltd.
- Eiki Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Current source power converting apparatus with overvoltage protection
- Patent number 4,884,182
- Issue date Nov 28, 1989
- Hitachi, Ltd.
- Takeki Ando
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Signal transmission method and system in elevator equipment
- Patent number 4,872,532
- Issue date Oct 10, 1989
- Hitachi, Ltd.
- Toshimitsu Tobita
- B66 - HOISTING LIFTING HAULING

Kiyoshi Nakamura

Person

Patents Grantslast 30 patents

Method and system of controlling elevators and method and apparatus...

Control system for electric vehicle

Power conversion apparatus

Control apparatus for electric vehicles

Three level power converting apparatus having means for balancing D...

Electric power converting apparatus

Inverter control apparatus

Control apparatus of power converter and control apparatus of elect...

Multilevel inverter having voltage dividing capacitors distributed...

Electric power converting apparatus

Group control elevator system for automatically adjusting elevator...

Information transfer system

Elevator system

Electric power converter arrangement and electric rolling stock con...

Power converter for converting DC voltage into AC phase voltage hav...

Control apparatus for suppressing a third harmonic neutral point vo...

Method and system of controlling elevators and method and apparatus...

Apparatus and methods for detecting number of people waiting in an...

Elevator control system with image pickups in hall waiting areas an...

Inverter control apparatus

Electron gun and cathode-ray tube

Group management control method and apparatus for an elevator system

Image processing apparatus having apparatus for correcting the imag...

Power conversion system

Power converter with current-type inverter

Power supply system for a linear motor type transportation system

Apparatus and method for controlling switching elements in a PWN-co...

Color cathode-ray tube

Current source power converting apparatus with overvoltage protection

Signal transmission method and system in elevator equipment