Masuo Akamatsu

Person

Hitachinaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Heating resistor type air flow meter
- Patent number 7,168,312
- Issue date Jan 30, 2007
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING
Information Patent Grant
Air meter
- Patent number 7,040,159
- Issue date May 9, 2006
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING
Information Patent Grant
Heating resistor type air flow rate measuring apparatus
- Patent number 7,036,368
- Issue date May 2, 2006
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING
Information Patent Grant
Air meter
- Patent number 6,691,568
- Issue date Feb 17, 2004
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING
Information Patent Grant
Heating resistor type air flow rate measuring apparatus
- Patent number 6,435,023
- Issue date Aug 20, 2002
- Hitachi, Ltd.
- Chihiro Kobayashi
- G01 - MEASURING TESTING
Information Patent Grant
Air flow meter with heat generating resistor
- Patent number 6,357,293
- Issue date Mar 19, 2002
- Hitachi, Ltd.
- Ryo Ando
- G01 - MEASURING TESTING
Information Patent Grant
Heating resistor type air flow-meter of ratio-metric output type an...
- Patent number 6,032,526
- Issue date Mar 7, 2000
- Hitachi, Ltd.
- Masuo Akamatsu
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Heat type air flow meter
- Patent number 5,654,506
- Issue date Aug 5, 1997
- Hitachi, Ltd.
- Hiroshi Yoneda
- G01 - MEASURING TESTING
Information Patent Grant
Hot wire type air flowmeter
- Patent number 5,537,871
- Issue date Jul 23, 1996
- Hitachi, Ltd.
- Takayuki Itsuji
- G01 - MEASURING TESTING
Information Patent Grant
Hot wire air flow meter
- Patent number 5,181,420
- Issue date Jan 26, 1993
- Hitachi, Ltd.
- Masayoshi Suzuki
- G01 - MEASURING TESTING
Information Patent Grant
Air flow meter with compensation of second stage delay of thermal i...
- Patent number 5,036,702
- Issue date Aug 6, 1991
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING
Information Patent Grant
Intake air flow rate measuring apparatus for use in internal combus...
- Patent number 4,976,140
- Issue date Dec 11, 1990
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Heating resistor type air flow meter
- Publication number 20050268711
- Publication date Dec 8, 2005
- HITACHI, LTD.
- Masuo Akamatsu
- G01 - MEASURING TESTING
Information Patent Application
Heating resistor type air flow rate measuring apparatus
- Publication number 20040025584
- Publication date Feb 12, 2004
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING
Information Patent Application
Air meter
- Publication number 20030192378
- Publication date Oct 16, 2003
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING
Information Patent Application
Heating resistor type air flow [rate] measuring apparatus
- Publication number 20020056318
- Publication date May 16, 2002
- Hitachi, Ltd.
- Chihiro Kobayashi
- G01 - MEASURING TESTING
Information Patent Application
Air meter
- Publication number 20010009109
- Publication date Jul 26, 2001
- Hitachi, Ltd.
- Masuo Akamatsu
- G01 - MEASURING TESTING

Masuo Akamatsu

Person

Patents Grantslast 30 patents

Heating resistor type air flow meter

Air meter

Heating resistor type air flow rate measuring apparatus

Air meter

Heating resistor type air flow rate measuring apparatus

Air flow meter with heat generating resistor

Heating resistor type air flow-meter of ratio-metric output type an...

Heat type air flow meter

Hot wire type air flowmeter

Hot wire air flow meter

Air flow meter with compensation of second stage delay of thermal i...

Intake air flow rate measuring apparatus for use in internal combus...

Patents Applicationslast 30 patents

Heating resistor type air flow meter

Heating resistor type air flow rate measuring apparatus

Air meter

Heating resistor type air flow [rate] measuring apparatus

Air meter