Yasuo Matsuda

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Driving circuit for a switching element including an improved power...
- Patent number 5,216,349
- Issue date Jun 1, 1993
- Hitachi, Ltd.
- Akihoko Kanouda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Drive circuit for an insulated gate transistor having overcurrent d...
- Patent number 5,210,479
- Issue date May 11, 1993
- Hitachi, Ltd.
- Shin Kimura
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Solid state current sensing circuit and protection circuit
- Patent number 5,008,586
- Issue date Apr 16, 1991
- Hitachi, Ltd.
- Hideki Miyazaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switching power supply
- Patent number 4,933,830
- Issue date Jun 12, 1990
- Hitachi, Ltd.
- Masayoshi Sato
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Reactive power compensator for electric power system
- Patent number 4,897,593
- Issue date Jan 30, 1990
- Hitachi, Ltd.
- Hiroo Konishi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Monolithic integrated circuit device
- Patent number 4,890,009
- Issue date Dec 26, 1989
- Hitachi, Ltd.
- Hideki Miyazaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Pulse width modulated inverter with high-to-low frequency output co...
- Patent number 4,878,163
- Issue date Oct 31, 1989
- Hitachi, Ltd.
- Ikuo Yamato
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Voltage resonance type switching power source apparatus
- Patent number 4,866,589
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Masayoshi Satoo
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Resonant converter for stabilized operation of switching devices
- Patent number 4,858,096
- Issue date Aug 15, 1989
- Hitachi, Ltd.
- Kenichi Onda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current and frequency converter having means to reduce switching lo...
- Patent number 4,855,887
- Issue date Aug 8, 1989
- Hitachi, Ltd.
- Ikuo Yamato
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Capacitive voltage lowering circuit with dual outputs
- Patent number 4,841,427
- Issue date Jun 20, 1989
- Hitachi, Ltd.
- Hideki Miyazaki
- 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 circuit for power converter apparatus
- Patent number 4,599,685
- Issue date Jul 8, 1986
- Hitachi, Ltd.
- Mitsuyuki Hombu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Apparatus for repeatedly applying short-circuit pulses to a current...
- Patent number 4,581,693
- Issue date Apr 8, 1986
- Hitachi, Ltd.
- Shigeta Ueda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control circuit for a semiconductor element with a control electrode
- Patent number 4,568,838
- Issue date Feb 4, 1986
- Hitachi, Ltd.
- Kazuo Honda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Inverter device using gate turn-off thyristors
- Patent number 4,549,258
- Issue date Oct 22, 1985
- Hitachi, Ltd.
- Mitsuyuki Honbu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gate control circuit for current-type inverter apparatus
- Patent number 4,549,259
- Issue date Oct 22, 1985
- Hitachi, Ltd.
- Shigeta Ueda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of controlling the output voltage of a pulse width modulatio...
- Patent number 4,480,299
- Issue date Oct 30, 1984
- Hitachi, Ltd.
- Nobuyoshi Muto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gate circuit for gate turn-off thyristor
- Patent number 4,456,836
- Issue date Jun 26, 1984
- Hitachi, Ltd.
- Yasuo Matsuda
- H03 - BASIC ELECTRONIC CIRCUITRY
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
Control system for induction motor using inverter for AC power supply
- Patent number 4,420,718
- Issue date Dec 13, 1983
- Hitachi, Ltd.
- Keijiro Sakai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method of controlling pulse width modulated inverter for use in ind...
- Patent number 4,419,615
- Issue date Dec 6, 1983
- Hitachi, Ltd.
- Nobuyoshi Muto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and apparatus for detecting shortcircuit in arm of GTO inverter
- Patent number 4,384,248
- Issue date May 17, 1983
- Hitachi, Ltd.
- Yasuo Matsuda
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for controlling pulse width modulation inverte...
- Patent number 4,367,520
- Issue date Jan 4, 1983
- Hitachi, Ltd.
- Nobuyoshi Muto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Twelve-step current source inverter
- Patent number 4,276,589
- Issue date Jun 30, 1981
- Hitachi, Ltd.
- Tadashi Okawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power conversion apparatus
- Patent number 4,231,083
- Issue date Oct 28, 1980
- Hitachi, Ltd.
- Yasuo Matsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Protective device of a current source inverter
- Patent number 4,188,663
- Issue date Feb 12, 1980
- Hitachi, Ltd.
- Tadashi Okawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control device for a pulse-width modulated inverter
- Patent number 4,179,727
- Issue date Dec 18, 1979
- Hitachi, Ltd.
- Nobuyoshi Muto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Current source inverter
- Patent number 4,156,899
- Issue date May 29, 1979
- Hitachi, Ltd.
- Yasuo Matsuda
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Variable speed control apparatus for induction motor
- Patent number 4,099,108
- Issue date Jul 4, 1978
- Hitachi, Ltd.
- Tadashi Okawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
Motor having cores structure wherein magnetic circuit is designed i...
- Publication number 20060113849
- Publication date Jun 1, 2006
- Yuji Enomoto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Motor having core structure wherein magnetic circuit is designed in...
- Publication number 20040108782
- Publication date Jun 10, 2004
- Yuji Enomto
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Yasuo Matsuda

Person

Patents Grantslast 30 patents

Driving circuit for a switching element including an improved power...

Drive circuit for an insulated gate transistor having overcurrent d...

Solid state current sensing circuit and protection circuit

Switching power supply

Reactive power compensator for electric power system

Monolithic integrated circuit device

Pulse width modulated inverter with high-to-low frequency output co...

Voltage resonance type switching power source apparatus

Resonant converter for stabilized operation of switching devices

Current and frequency converter having means to reduce switching lo...

Capacitive voltage lowering circuit with dual outputs

Method and apparatus for controlling PWM inverter

Control circuit for power converter apparatus

Apparatus for repeatedly applying short-circuit pulses to a current...

Control circuit for a semiconductor element with a control electrode

Inverter device using gate turn-off thyristors

Gate control circuit for current-type inverter apparatus

Method of controlling the output voltage of a pulse width modulatio...

Gate circuit for gate turn-off thyristor

Method and apparatus for controlling induction motor

Control system for induction motor using inverter for AC power supply

Method of controlling pulse width modulated inverter for use in ind...

Method and apparatus for detecting shortcircuit in arm of GTO inverter

Method and apparatus for controlling pulse width modulation inverte...

Twelve-step current source inverter

Power conversion apparatus

Protective device of a current source inverter

Control device for a pulse-width modulated inverter

Current source inverter

Variable speed control apparatus for induction motor

Patents Applicationslast 30 patents

Motor having cores structure wherein magnetic circuit is designed i...

Motor having core structure wherein magnetic circuit is designed in...