Hirokazu Fukaya

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Amplifier system switchable between two amplifying operations
- Patent number 4,596,957
- Issue date Jun 24, 1986
- Nippon Electric Company Limited
- Hirokazu Fukaya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Control circuit for controlling output pulse width using negative f...
- Patent number 4,552,118
- Issue date Nov 12, 1985
- NEC Corporation
- Hirokazu Fukaya
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Pulse width control circuit
- Patent number 4,509,494
- Issue date Apr 9, 1985
- Nippon Electric Company, Ltd.
- Shigeo Nishitoba
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Amplifier system switchable between two amplifying operations
- Patent number 4,494,077
- Issue date Jan 15, 1985
- Nippon Electric Co., Ltd.
- Hirokazu Fukaya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Pulse width control circuit in which a feedback amount is varied de...
- Patent number 4,469,082
- Issue date Sep 4, 1984
- Nippon Electric Co., Ltd.
- Shigeo Nishitoba
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Semiconductor power amplification circuit
- Patent number 4,330,757
- Issue date May 18, 1982
- Nippon Electric Co., Ltd.
- Hirokazu Fukaya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power amplifier apparatus having over-current protection function
- Patent number 4,287,390
- Issue date Sep 1, 1981
- Nippon Electric Co., Ltd.
- Hirokazu Fukaya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Motor speed control circuit having improved starting characteristics
- Patent number 4,227,127
- Issue date Oct 7, 1980
- Nippon Electric Co., Ltd.
- Hirokazu Fukaya
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Hirokazu Fukaya

Person

Patents Grantslast 30 patents

Amplifier system switchable between two amplifying operations

Control circuit for controlling output pulse width using negative f...

Pulse width control circuit

Amplifier system switchable between two amplifying operations

Pulse width control circuit in which a feedback amount is varied de...

Semiconductor power amplification circuit

Power amplifier apparatus having over-current protection function

Motor speed control circuit having improved starting characteristics