Inventor
MIWA NAOTO
JP39 patents
⚠️ This page may combine multiple inventors who share the name “MIWA NAOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON DENSO CO
21 patentsUS4519820AMay 28, 1985
Fitter apparatus for purifying exhaust gases
NIPPON DENSO CO179 citations98
US4632683ADec 30, 1986
Exhaust gas purifying filter and production of the same
NIPPON DENSO CO97 citations96
US4448833AMay 15, 1984
Porous ceramic body and a method of manufacturing the same
NIPPON DENSO CO113 citations96
US4435512AMar 6, 1984
Process for producing cordierite ceramic products
NIPPON DENSO CO68 citations95
US5969229AOct 19, 1999
Lead wire for sensor
NIPPON DENSO CO25 citations92
US5900129AMay 4, 1999
Oxygen concentration sensor
NIPPON DENSO CO30 citations92
US5800689ASep 1, 1998
Oxygen concentration detector
NIPPON DENSO CO22 citations92
US4831432AMay 16, 1989
Positive ceramic semiconductor device
NIPPON DENSO CO25 citations92
US4219359AAug 26, 1980
Sintered body of zirconia for oxygen concentration sensor
NIPPON DENSO CO37 citations92
US5716507AFeb 10, 1998
Oxygen sensor element
NIPPON DENSO CO35 citations90
US4671058AJun 9, 1987
Heating device
NIPPON DENSO CO39 citations90
US4401967AAug 30, 1983
Gas sensor
NIPPON DENSO CO24 citations82
US3958209AMay 18, 1976
High temperature thermistor
NIPPON DENSO CO22 citations80
US4834052AMay 30, 1989
Internal combustion engine having air/fuel mixture with anti-reducing semiconducting porcelain having a positive temperature coefficient of resistance and method for using such porcelain for heating air/fuel mixture
NIPPON DENSO CO15 citations73
US4716279ADec 29, 1987
Self-temperature controlling type heating device
NIPPON DENSO CO19 citations73
US4220517ASep 2, 1980
Oxygen concentration sensing apparatus
NIPPON DENSO CO7 citations73
US5729189AMar 17, 1998
Positive TCR thermistor device having surface roughness and filling oil for high heat transfer characteristics
NIPPON DENSO CO9 citations72
US5609825AMar 11, 1997
Oxygen sensor
NIPPON DENSO CO10 citations72
US5766672AJun 16, 1998
Method of manufacturing an oxygen concentration detector element
NIPPON DENSO CO4 citations63
US5707503AJan 13, 1998
Oxygen sensor element
NIPPON DENSO CO2 citations63
US4313810AFeb 2, 1982
Oxygen concentration sensing apparatus
NIPPON DENSO CO6 citations62
DENSO CORP
10 patentsUS6332965B1Dec 25, 2001
Composite gas sensor
DENSO CORP32 citations93
US6055972AMay 2, 2000
Air fuel ratio control apparatus having air-fuel ratio control point switching function
DENSO CORP28 citations92
US5948225ASep 7, 1999
Oxygen sensor element
DENSO CORP31 citations92
US5935399AAug 10, 1999
Air-fuel ratio sensor
DENSO CORP35 citations92
US5787866AAug 4, 1998
Air-fuel ratio sensor
DENSO CORP38 citations92
US5766434AJun 16, 1998
Oxygen concentration detecting device and method for fabricating the same
DENSO CORP43 citations92
US6174489B1Jan 16, 2001
Method for manufacturing a gas sensor unit
DENSO CORP16 citations84
US6110348AAug 29, 2000
NOx sensor and manufacturing method of the same
DENSO CORP7 citations74
US6254926B1Jul 3, 2001
Method of producing oxygen sensor element
DENSO CORP8 citations73
US6951601B1Oct 4, 2005
Oxygen concentration detector
DENSO CORP4 citations63
MITSUBISHI PETROCHEMICAL CO
3 patentsUS4438199AMar 20, 1984
Measuring composition
MITSUBISHI PETROCHEMICAL CO9 citations74
US4315988AFeb 16, 1982
Thermophilic collagenases, thermophilic bacteria capable of producing thermophilic collagenases, and process for producing said collagenases
MITSUBISHI PETROCHEMICAL CO14 citations69
US4352881AOct 5, 1982
Method of measuring creatine kinase activity
MITSUBISHI PETROCHEMICAL CO18 citations68