Hiroshi Nagase

Person

Hitachi-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Rope and elevator using the same
- Patent number 7,137,483
- Issue date Nov 21, 2006
- Hitachi, Ltd.
- Kensuke Kato
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Elevator
- Patent number 6,382,361
- Issue date May 7, 2002
- Hitachi, Ltd.
- Hideki Nihei
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Conductive material and process for preparing the same
- Patent number 5,403,674
- Issue date Apr 4, 1995
- Hitachi, Ltd.
- Yoshiyuki Yasutomi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Conductive material and process for preparing the same
- Patent number 5,271,871
- Issue date Dec 21, 1993
- Hitachi, Ltd.
- Yoshiyuki Yasutomi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Conductive material and process for preparing the same
- Patent number 5,085,806
- Issue date Feb 4, 1992
- Hitachi, Ltd.
- Yoshiyuki Yasutomi
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Method and apparatus for detecting positions and/or speed of a movi...
- Patent number 5,019,773
- Issue date May 28, 1991
- Hitachi, Ltd.
- Yasuyuki Sugiura
- G01 - MEASURING TESTING
Information Patent Grant
Actuator
- Patent number 4,983,875
- Issue date Jan 8, 1991
- Hitachi, Ltd.
- Ryoso Masaki
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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
Method and apparatus for controlling PWM inverter
- Patent number 4,629,959
- Issue date Dec 16, 1986
- Hitachi, Ltd.
- Toshiaki Okuyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for controlling PWM inverter
- Patent number 4,611,158
- Issue date Sep 9, 1986
- Hitachi, Ltd.
- Hiroshi Nagase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for induction motor
- Patent number 4,532,464
- Issue date Jul 30, 1985
- Hitachi, Ltd.
- Sadayuki Igarashi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus of controlling induction motors
- Patent number 4,524,310
- Issue date Jun 18, 1985
- Hitachi, Ltd.
- Hiroshi Nagase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for AC motors
- Patent number 4,516,065
- Issue date May 7, 1985
- Hitachi, Ltd.
- Hisakazu Ninomiya
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
PWM Converter with control circuit responsive to minimum holding cu...
- Patent number 4,486,824
- Issue date Dec 4, 1984
- Hitachi, Ltd.
- Toshiaki Okuyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method for controlling induction motor and apparatus therefor
- Patent number 4,459,534
- Issue date Jul 10, 1984
- Hitachi, Ltd.
- Hiroshi Nagase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus for controlling AC motor
- Patent number 4,451,771
- Issue date May 29, 1984
- Hitachi, Ltd.
- Hiroshi Nagase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for controlling induction motor
- Patent number 4,437,051
- Issue date Mar 13, 1984
- Hitachi, Ltd.
- Nobuyoshi Muto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Motor control system
- Patent number 4,344,025
- Issue date Aug 10, 1982
- Hitachi, Ltd.
- Toshiaki Okuyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Electric control apparatus of induction motor
- Patent number 4,330,741
- Issue date May 18, 1982
- Hitachi, Ltd.
- Hiroshi Nagase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus for controlling ac motor
- Patent number 4,328,454
- Issue date May 4, 1982
- Hitachi, Ltd.
- Toshiaki Okuyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus of synchronous motor having thyristor converter
- Patent number 4,295,084
- Issue date Oct 13, 1981
- Hitachi, Ltd.
- Hiroshi Nagase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for induction motor
- Patent number 4,277,735
- Issue date Jul 7, 1981
- Hitachi, Ltd.
- Toshiaki Okuyama
Information Patent Grant
Control device for commutatorless motor
- Patent number 4,276,504
- Issue date Jun 30, 1981
- Hitachi, Ltd.
- Hiroshi Nagase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for suppressing torque ripple in synchronous motor
- Patent number 4,240,020
- Issue date Dec 16, 1980
- Hitachi, Ltd.
- Toshiaki Okuyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Harmonic eliminating apparatus
- Patent number 4,206,395
- Issue date Jun 3, 1980
- Hitachi, Ltd.
- Toshiaki Okuyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for a.c. motors
- Patent number 4,132,931
- Issue date Jan 2, 1979
- Hitachi, Ltd.
- Toshiaki Okuyama
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control apparatus for use in a synchronous machine
- Patent number 4,125,796
- Issue date Nov 14, 1978
- Hitachi, Ltd.
- Hiroshi Nagase
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Rope and elecvator using the same
- Publication number 20030089551
- Publication date May 15, 2003
- Kensuke Kato
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Elevator
- Publication number 20010004033
- Publication date Jun 21, 2001
- Hideki Nihei
- B66 - HOISTING LIFTING HAULING

Hiroshi Nagase

Person

Patents Grantslast 30 patents

Rope and elevator using the same

Elevator

Conductive material and process for preparing the same

Conductive material and process for preparing the same

Conductive material and process for preparing the same

Method and apparatus for detecting positions and/or speed of a movi...

Actuator

Control apparatus for inverter for driving AC motor

Method and apparatus for controlling PWM inverter

Method and apparatus for controlling PWM inverter

Control apparatus for induction motor

Method and apparatus of controlling induction motors

Control apparatus for AC motors

PWM Converter with control circuit responsive to minimum holding cu...

Method for controlling induction motor and apparatus therefor

Apparatus for controlling AC motor

Method and apparatus for controlling induction motor

Motor control system

Electric control apparatus of induction motor

Apparatus for controlling ac motor

Control apparatus of synchronous motor having thyristor converter

Control apparatus for induction motor

Control device for commutatorless motor

Control system for suppressing torque ripple in synchronous motor

Harmonic eliminating apparatus

Control system for a.c. motors

Control apparatus for use in a synchronous machine

Patents Applicationslast 30 patents

Rope and elecvator using the same

Elevator