Inventor
ICHIKAWA NORIO
JP29 patents
⚠️ This page may combine multiple inventors who share the name “ICHIKAWA NORIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
21 patentsUS5417312AMay 23, 1995
Semiconductor acceleration sensor and vehicle control system using the same
HITACHI LTD161 citations98
US6877383B2Apr 12, 2005
Capacitive type pressure sensor
HITACHI LTD61 citations96
US6051853AApr 18, 2000
Semiconductor pressure sensor including reference capacitor on the same substrate
HITACHI LTD74 citations96
US5243861ASep 14, 1993
Capacitive type semiconductor accelerometer
HITACHI LTD118 citations96
US6564643B1May 20, 2003
Capacitive pressure sensor
HITACHI LTD52 citations94
US5616844AApr 1, 1997
Capacitance type acceleration sensor
HITACHI LTD74 citations94
US6377056B1Apr 23, 2002
Electrostatic capacitance type dynamical quantity sensor
HITACHI LTD27 citations92
US5389198AFeb 14, 1995
Structure and method of manufacturing the same
HITACHI LTD28 citations92
US4644797AFeb 24, 1987
Semiconductor pressure transducer
HITACHI LTD40 citations89
US5032248AJul 16, 1991
Gas sensor for measuring air-fuel ratio and method of manufacturing the gas sensor
HITACHI LTD21 citations82
US4164462AAug 14, 1979
Oxygen sensor
HITACHI LTD23 citations82
US4200511AApr 29, 1980
Device for electrochemically measuring the concentration of oxygen in combustion gases
HITACHI LTD7 citations74
US4127464ANov 28, 1978
Sensor for detecting oxygen concentration
HITACHI LTD19 citations74
US4058787ANov 15, 1977
Temperature sensor
HITACHI LTD14 citations74
US4944274AJul 31, 1990
Air-fuel ratio control apparatus for internal combustion engines
HITACHI LTD10 citations73
US4915814AApr 10, 1990
Sensor for measurement of air/fuel ratio and method of manufacturing
HITACHI LTD19 citations73
US5676851AOct 14, 1997
Method of making a capacitance type acceleration sensor
HITACHI LTD11 citations71
US4670730AJun 2, 1987
Pressure sensor and a method of arranging a pressure sensor
HITACHI LTD13 citations71
US4909223AMar 20, 1990
Air-fuel ratio control apparatus for multicylinder engine
HITACHI LTD10 citations69
US4657660AApr 14, 1987
Apparatus for sensing oxygen concentration
HITACHI LTD5 citations63
US4799018AJan 17, 1989
Air fuel ratio measuring system
HITACHI LTD1 citations52
HAMAMATSU PHOTONICS KK
5 patentsUS9240313B2Jan 19, 2016
Target for ultraviolet light generation, electron beam-excited ultraviolet light source, and production method for target for ultraviolet light generation
HAMAMATSU PHOTONICS KK3 citations72
US11887837B2Jan 30, 2024
Ultraviolet light generation target, method for manufacturing ultraviolet light generation target, and electron-beam-excited ultraviolet light source
HAMAMATSU PHOTONICS KK0 citations62
US7166830B2Jan 23, 2007
Light detecting sensor
HAMAMATSU PHOTONICS KK5 citations60
US10381215B2Aug 13, 2019
Target for ultraviolet light generation, and method for manufacturing same
HAMAMATSU PHOTONICS KK0 citations51
US10079141B2Sep 18, 2018
Ultraviolet light-generating target and method for manufacturing the same, and electron beam-excited ultraviolet light source
HAMAMATSU PHOTONICS KK0 citations51