Hisakatsu Kiwaki

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
X-ray generator with current measuring device
- Patent number 4,768,215
- Issue date Aug 30, 1988
- Hitachi Medical Corporation
- Hisakatsu Kiwaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Control system for maintaining traction of rolling stock
- Patent number 4,701,682
- Issue date Oct 20, 1987
- Hitachi, Ltd.
- Tetsuji Hirotsu
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Elevator control apparatus
- Patent number 4,629,034
- Issue date Dec 16, 1986
- Hitachi, Ltd.
- Hiromi Inaba
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Magnetic amplifying apparatus
- Patent number 4,377,758
- Issue date Mar 22, 1983
- Hitachi, Ltd.
- Hisakatsu Kiwaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power factor improving apparatus for power converter
- Patent number 4,306,283
- Issue date Dec 15, 1981
- Hitachi, Ltd.
- Hisakatsu Kiwaki
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Direct current detecting device using saturable reactors
- Patent number 4,286,211
- Issue date Aug 25, 1981
- Hitachi, Ltd.
- Kiyoshi Nakamura
- G01 - MEASURING TESTING
Information Patent Grant
System for detecting output of controllable semiconductor device
- Patent number 4,171,510
- Issue date Oct 16, 1979
- Hitachi, Ltd.
- Hisakatsu Kiwaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Magnetic phase shifter control system
- Patent number 4,163,191
- Issue date Jul 31, 1979
- Hitachi, Ltd.
- Hisakatsu Kiwaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Braking control apparatus for an electric motor operated vehicle
- Patent number 4,124,812
- Issue date Nov 7, 1978
- Hitachi, Ltd.
- Shotaro Naito
- B60 - VEHICLES IN GENERAL

Hisakatsu Kiwaki

Person

Patents Grantslast 30 patents

X-ray generator with current measuring device

Control system for maintaining traction of rolling stock

Elevator control apparatus

Magnetic amplifying apparatus

Power factor improving apparatus for power converter

Direct current detecting device using saturable reactors

System for detecting output of controllable semiconductor device

Magnetic phase shifter control system

Braking control apparatus for an electric motor operated vehicle