Akio Hirata

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Multiple inverter system
- Patent number 6,229,722
- Issue date May 8, 2001
- Kabushiki Kaisha Toshiba
- Kosaku Ichikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power converter with voltage drive switching device monitored by de...
- Patent number 5,929,665
- Issue date Jul 27, 1999
- Kabushiki Kaisha Toshiba
- Kosaku Ichikawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Parallel connection of different types of AC power supplies of diff...
- Patent number 5,473,528
- Issue date Dec 5, 1995
- Kabushiki Kaisha Toshiba
- Akio Hirata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Uninterruptible power supply diagnosing remaining battery capacity...
- Patent number 5,148,043
- Issue date Sep 15, 1992
- Kabushiki Kaisha Toshiba
- Akio Hirata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Turbine helper drive apparatus
- Patent number 4,818,890
- Issue date Apr 4, 1989
- Kabushiki Kaisha Toshiba
- Tadao Mose
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Helper drive apparatus for turbine drive system
- Patent number 4,771,606
- Issue date Sep 20, 1988
- Kabushiki Kaisha Toshiba
- Tadao Mose
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
AC motor control method and its control apparatus
- Patent number 4,736,148
- Issue date Apr 5, 1988
- Kabushiki Kaisha Toshiba
- Akio Hirata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Turbine helper drive apparatus
- Patent number 4,721,861
- Issue date Jan 26, 1988
- Kabushiki Kaisha Toshiba
- Suzuo Saito
- G05 - CONTROLLING REGULATING
Information Patent Grant
Load-commutated inverter for operating synchronous motor
- Patent number 4,654,572
- Issue date Mar 31, 1987
- Kabushiki Kaisha Toshiba
- Akio Hirata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control system for an AC motor
- Patent number 4,633,158
- Issue date Dec 30, 1986
- Kabushiki Kaisha Toshiba
- Akio Hirata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Device for controlling a plurality of converters
- Patent number 4,268,900
- Issue date May 19, 1981
- Akio Hirata
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Akio Hirata

Person

Patents Grantslast 30 patents

Multiple inverter system

Power converter with voltage drive switching device monitored by de...

Parallel connection of different types of AC power supplies of diff...

Uninterruptible power supply diagnosing remaining battery capacity...

Turbine helper drive apparatus

Helper drive apparatus for turbine drive system

AC motor control method and its control apparatus

Turbine helper drive apparatus

Load-commutated inverter for operating synchronous motor

Control system for an AC motor

Device for controlling a plurality of converters