Norio Ichikawa

Person

Mito-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Sensor with built-in circuits and pressure detector using the same
- Patent number 6,941,815
- Issue date Sep 13, 2005
- Hitachi, Ltd.
- Yasuo Onose
- G01 - MEASURING TESTING
Information Patent Grant
Capacitive type pressure sensor
- Patent number 6,877,383
- Issue date Apr 12, 2005
- Hitachi, Ltd.
- Junichi Horie
- G01 - MEASURING TESTING
Information Patent Grant
Capacitive pressure sensor
- Patent number 6,564,643
- Issue date May 20, 2003
- Hitachi, Ltd.
- Junichi Horie
- G01 - MEASURING TESTING
Information Patent Grant
Electrostatic capacitance type dynamical quantity sensor
- Patent number 6,377,056
- Issue date Apr 23, 2002
- Hitachi, Ltd.
- Keiji Hanzawa
- G01 - MEASURING TESTING
Information Patent Grant
Capacitance type pressure sensor with capacitive elements actuated...
- Patent number 6,167,761
- Issue date Jan 2, 2001
- Hitachi, Ltd. and Hitachi Car Engineering Co., Ltd.
- Keiji Hanzawa
- G01 - MEASURING TESTING
Information Patent Grant
Semiconductor pressure sensor including reference capacitor on the...
- Patent number 6,051,853
- Issue date Apr 18, 2000
- Hitachi, Ltd.
- Satoshi Shimada
- G01 - MEASURING TESTING
Information Patent Grant
Method of making a capacitance type acceleration sensor
- Patent number 5,676,851
- Issue date Oct 14, 1997
- Hitachi Ltd.
- Masayoshi Suzuki
- G01 - MEASURING TESTING
Information Patent Grant
Capacitance type acceleration sensor
- Patent number 5,616,844
- Issue date Apr 1, 1997
- Hitachi, Ltd.
- Masayoshi Suzuki
- G01 - MEASURING TESTING
Information Patent Grant
Semiconductor acceleration sensor and vehicle control system using...
- Patent number 5,417,312
- Issue date May 23, 1995
- Hitachi, Ltd.
- Shigeki Tsuchitani
- G01 - MEASURING TESTING
Information Patent Grant
Structure and method of manufacturing the same
- Patent number 5,389,198
- Issue date Feb 14, 1995
- Hitachi, Ltd.
- Akira Koide
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Capacitive type semiconductor accelerometer
- Patent number 5,243,861
- Issue date Sep 14, 1993
- Hitachi, Ltd.
- Benjamin Kloeck
- B81 - MICRO-STRUCTURAL TECHNOLOGY
Information Patent Grant
Gas sensor for measuring air-fuel ratio and method of manufacturing...
- Patent number 5,032,248
- Issue date Jul 16, 1991
- Hitachi, Ltd.
- Masatoshi Kanamaru
- G01 - MEASURING TESTING
Information Patent Grant
Air-fuel ratio control apparatus for internal combustion engines
- Patent number 4,944,274
- Issue date Jul 31, 1990
- Hitachi, Ltd.
- Takayuki Itsuji
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Sensor for measurement of air/fuel ratio and method of manufacturing
- Patent number 4,915,814
- Issue date Apr 10, 1990
- Hitachi, Ltd.
- Takeshi Harada
- G01 - MEASURING TESTING
Information Patent Grant
Air-fuel ratio control apparatus for multicylinder engine
- Patent number 4,909,223
- Issue date Mar 20, 1990
- Hitachi, Ltd.
- Takauki Ituzi
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Air fuel ratio measuring system
- Patent number 4,799,018
- Issue date Jan 17, 1989
- Hitachi, Ltd.
- Norio Ichikawa
- G01 - MEASURING TESTING
Information Patent Grant
Pressure sensor and a method of arranging a pressure sensor
- Patent number 4,670,730
- Issue date Jun 2, 1987
- Hitachi, Ltd.
- Seijiro Takeda
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for sensing oxygen concentration
- Patent number 4,657,660
- Issue date Apr 14, 1987
- Hitachi, Ltd.
- Kanemasa Sato
- G01 - MEASURING TESTING
Information Patent Grant
Semiconductor pressure transducer
- Patent number 4,644,797
- Issue date Feb 24, 1987
- Hitachi, Ltd.
- Norio Ichikawa
- G01 - MEASURING TESTING
Information Patent Grant
Device for electrochemically measuring the concentration of oxygen...
- Patent number 4,200,511
- Issue date Apr 29, 1980
- Hitachi, Ltd.
- Kanemasa Sato
- G01 - MEASURING TESTING
Information Patent Grant
Oxygen sensor
- Patent number 4,164,462
- Issue date Aug 14, 1979
- Hitachi, Ltd.
- Norio Ichikawa
- G01 - MEASURING TESTING
Information Patent Grant
Sensor for detecting oxygen concentration
- Patent number 4,127,464
- Issue date Nov 28, 1978
- Hitachi, Ltd.
- Norio Ichikawa
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Capacitive type pressure sensor
- Publication number 20030019299
- Publication date Jan 30, 2003
- Hitachi, Ltd.
- Junichi Horie
- G01 - MEASURING TESTING
Information Patent Application
Sensor with built-in circuits and pressure detector using the same
- Publication number 20020157475
- Publication date Oct 31, 2002
- Hitachi, Ltd.
- Yasuo Onose
- G01 - MEASURING TESTING

Norio Ichikawa

Person

Patents Grantslast 30 patents

Sensor with built-in circuits and pressure detector using the same

Capacitive type pressure sensor

Capacitive pressure sensor

Electrostatic capacitance type dynamical quantity sensor

Capacitance type pressure sensor with capacitive elements actuated...

Semiconductor pressure sensor including reference capacitor on the...

Method of making a capacitance type acceleration sensor

Capacitance type acceleration sensor

Semiconductor acceleration sensor and vehicle control system using...

Structure and method of manufacturing the same

Capacitive type semiconductor accelerometer

Gas sensor for measuring air-fuel ratio and method of manufacturing...

Air-fuel ratio control apparatus for internal combustion engines

Sensor for measurement of air/fuel ratio and method of manufacturing

Air-fuel ratio control apparatus for multicylinder engine

Air fuel ratio measuring system

Pressure sensor and a method of arranging a pressure sensor

Apparatus for sensing oxygen concentration

Semiconductor pressure transducer

Device for electrochemically measuring the concentration of oxygen...

Oxygen sensor

Sensor for detecting oxygen concentration

Patents Applicationslast 30 patents

Capacitive type pressure sensor

Sensor with built-in circuits and pressure detector using the same