Seiya Shima

Person

Katsuta, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for controlling power converter
- Patent number 4,870,556
- Issue date Sep 26, 1989
- Hitachi, Ltd.
- Hiromi Inaba
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
PWM control for power converter system utilizing pulse dropping at...
- Patent number 4,833,586
- Issue date May 23, 1989
- Hitachi, Ltd.
- Hiromi Inaba
- 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
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
Apparatus for compensating reactive power by current-source type co...
- Patent number 4,780,660
- Issue date Oct 25, 1988
- Hitachi, Ltd.
- Seiya Shima
- G01 - MEASURING TESTING
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
dv/dt Protection circuit device for an AC-DC converter apparatus
- Patent number 4,636,932
- Issue date Jan 13, 1987
- Hitachi, Ltd.
- Toshiaki Kurosawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Controller for elevator
- Patent number 4,553,640
- Issue date Nov 19, 1985
- Hitachi, Ltd.
- Hiromi Inaba
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Control apparatus for passenger conveyor
- Patent number 4,499,986
- Issue date Feb 19, 1985
- Hitachi, Ltd.
- Nobuyoshi Tsuboi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
AC Elevator control system
- Patent number 4,441,584
- Issue date Apr 10, 1984
- Hitachi, Ltd.
- Nobuo Mitsui
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Method and apparatus for detecting elevator car position
- Patent number 4,387,436
- Issue date Jun 7, 1983
- Hitachi, Ltd.
- Yasunori Katayama
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Power converter apparatus
- Patent number 4,361,866
- Issue date Nov 30, 1982
- Hitachi, Ltd.
- Seiya Shima
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Speed control system for a motor
- Patent number 4,263,988
- Issue date Apr 28, 1981
- Hitachi, Ltd.
- Hiromi Inaba
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Safety apparatus for elevator system
- Patent number 4,256,204
- Issue date Mar 17, 1981
- Hitachi, Ltd.
- Takeki Ando
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Power converter system
- Patent number 4,245,293
- Issue date Jan 13, 1981
- Hitachi, Ltd.
- Mutsuhiro Terunuma
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Fault detecting system for a control system
- Patent number 4,171,505
- Issue date Oct 16, 1979
- Hitachi, Ltd.
- Seiya Shima
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Thyristor fault-detecting apparatus
- Patent number 4,133,018
- Issue date Jan 2, 1979
- Hitachi, Ltd.
- Mutsuhiro Terunuma
- G01 - MEASURING TESTING
Information Patent Grant
Control apparatus for DC motor
- Patent number 4,099,111
- Issue date Jul 4, 1978
- Hitachi, Ltd.
- Hiromi Inaba
- B66 - HOISTING LIFTING HAULING

Seiya Shima

Person

Patents Grantslast 30 patents

Method and apparatus for controlling power converter

PWM control for power converter system utilizing pulse dropping at...

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

Apparatus for controlling AC elevators

Apparatus for compensating reactive power by current-source type co...

Current-source power converting apparatus with self-extinction devices

dv/dt Protection circuit device for an AC-DC converter apparatus

Controller for elevator

Control apparatus for passenger conveyor

AC Elevator control system

Method and apparatus for detecting elevator car position

Power converter apparatus

Speed control system for a motor

Safety apparatus for elevator system

Power converter system

Fault detecting system for a control system

Thyristor fault-detecting apparatus

Control apparatus for DC motor