Hisao Amano

Person

Hitachi, JP

People

Patents Grantslast 30 patents

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
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
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
Switching power supply
- Patent number 4,777,575
- Issue date Oct 11, 1988
- Hitachi Ltd.
- Ikuo Yamato
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Semiconductor switching device having plural MOSFET's, GTO's or the...
- Patent number 4,692,643
- Issue date Sep 8, 1987
- Hitachi, Ltd.
- Norikazu Tokunaga
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor device with floating remote gate turn-off means
- Patent number 4,646,122
- Issue date Feb 24, 1987
- Hitachi, Ltd.
- Shin Kimura
- H01 - BASIC ELECTRIC ELEMENTS
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
Gate circuit for thyristors
- Patent number 4,417,156
- Issue date Nov 22, 1983
- Hitachi, Ltd.
- Hiroshi Fukui
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
D.C. Power supply
- Patent number 4,319,317
- Issue date Mar 9, 1982
- Hitachi, Ltd.
- Hiroshi Fukui
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power supply apparatus for resistance welder including means for pr...
- Patent number 4,306,138
- Issue date Dec 15, 1981
- Hitachi, Ltd.
- Norikazu Tokunaga
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Gate circuit for gate turn-off thyristor
- Patent number 4,298,809
- Issue date Nov 3, 1981
- Hitachi, Ltd.
- Kenichi Onda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Gate circuit for a gate turn-off thyristor
- Patent number 4,297,594
- Issue date Oct 27, 1981
- Hitachi, Ltd.
- Kenichi Onda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
DC Power transmission control
- Patent number 4,264,951
- Issue date Apr 28, 1981
- Hitachi, Ltd.
- Hiroo Konishi
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Gate controlling apparatus for a thyristor valve
- Patent number 4,100,434
- Issue date Jul 11, 1978
- Hitachi, Ltd.
- Ryuji Iyotani
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Hisao Amano

Person

Patents Grantslast 30 patents

Switching power supply

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

Voltage resonance type switching power source apparatus

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

Switching power supply

Semiconductor switching device having plural MOSFET's, GTO's or the...

Semiconductor device with floating remote gate turn-off means

Gate circuit for gate turn-off thyristor

Gate circuit for thyristors

D.C. Power supply

Power supply apparatus for resistance welder including means for pr...

Gate circuit for gate turn-off thyristor

Gate circuit for a gate turn-off thyristor

DC Power transmission control

Gate controlling apparatus for a thyristor valve