Takeshi Hirayama

Person

Mito, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of controlling air-fuel ratio
- Patent number 4,837,698
- Issue date Jun 6, 1989
- Hitachi, Ltd.
- Matsuo Amano
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method controlling air-fuel ratio
- Patent number 4,703,430
- Issue date Oct 27, 1987
- Hitachi, Ltd.
- Matsuo Amano
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Electronic control apparatus for an internal combustion engine
- Patent number 4,566,069
- Issue date Jan 21, 1986
- Hitachi, Ltd.
- Takeshi Hirayama
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Electronic control apparatus for internal combustion engine
- Patent number 4,561,056
- Issue date Dec 24, 1985
- Hitachi, Ltd.
- Takeshi Hirayama
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Method of fuel control in engine
- Patent number 4,522,178
- Issue date Jun 11, 1985
- Hitachi, Ltd.
- Matsuo Amano
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Fuel injection control apparatus for internal combustion engine
- Patent number 4,501,249
- Issue date Feb 26, 1985
- Hitachi, Ltd.
- Matsuo Amano
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Engine combustion control method
- Patent number 4,455,980
- Issue date Jun 26, 1984
- Hitachi, Ltd.
- Takao Sasayama
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Electronic control apparatus for internal combustion engine
- Patent number 4,428,051
- Issue date Jan 24, 1984
- Hitachi, Ltd.
- Shigeo Kuboki
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Takeshi Hirayama

Person

Patents Grantslast 30 patents

Method of controlling air-fuel ratio

Method controlling air-fuel ratio

Electronic control apparatus for an internal combustion engine

Electronic control apparatus for internal combustion engine

Method of fuel control in engine

Fuel injection control apparatus for internal combustion engine

Engine combustion control method

Electronic control apparatus for internal combustion engine