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Yoshinori Maegawa
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Oobu-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Abnormality detection device for internal combustion engine
Patent number
10,151,274
Issue date
Dec 11, 2018
Denso Corporation
Yoshinori Maegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Leakage diagnosis apparatus for evaporated-gas purge system
Patent number
9,389,142
Issue date
Jul 12, 2016
Denso Corporation
Ryo Tamura
G01 - MEASURING TESTING
Information
Patent Grant
Flow diagnosis apparatus for fuel vapor purge system
Patent number
8,155,917
Issue date
Apr 10, 2012
Denso Corporation
Yoshinori Maegawa
G01 - MEASURING TESTING
Information
Patent Grant
Leak check for fuel vapor purge system
Patent number
RE41823
Issue date
Oct 19, 2010
Denso Corporation
Makoto Miwa
123 - Internal-combustion engines
Information
Patent Grant
Fuel vapor control system with leak check
Patent number
RE41660
Issue date
Sep 14, 2010
Denso Corporation
Syujiro Morinaga
073 - Measuring and testing
Information
Patent Grant
Abnormality diagnosis apparatus for internal combustion engine
Patent number
7,721,591
Issue date
May 25, 2010
Denso Corporation
Yoshinori Maegawa
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Air-fuel ratio control apparatus of internal combustion engine
Patent number
7,464,698
Issue date
Dec 16, 2008
Denso Corporation
Yoshinori Maegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Deterioration diagnosis system for exhaust gas sensor
Patent number
7,387,011
Issue date
Jun 17, 2008
Denso Corporation
Kenichi Fujiki
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Evaporated fuel treatment system for internal combustion engine
Patent number
7,316,228
Issue date
Jan 8, 2008
Denso Corporation
Yoshinori Maegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Apparatus and method for diagnosis of vehicular system
Patent number
6,915,203
Issue date
Jul 5, 2005
Denso Corporation
Yoshinori Maegawa
G01 - MEASURING TESTING
Information
Patent Grant
Leak check for fuel vapor purge system
Patent number
6,892,712
Issue date
May 17, 2005
Denso Corporation
Makoto Miwa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Fuel vapor handling system
Patent number
6,854,452
Issue date
Feb 15, 2005
Denso Corporation
Syujiro Morinaga
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Fuel vapor control system with leak check
Patent number
6,832,509
Issue date
Dec 21, 2004
Denso Corporation
Syujiro Morinaga
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Leak-check apparatus of fuel-vapor-processing system, fuel-temperat...
Patent number
6,807,851
Issue date
Oct 26, 2004
Denso Corporation
Keiji Wakahara
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Misfire detection apparatus for internal combustion engine
Patent number
6,658,346
Issue date
Dec 2, 2003
Denso Corporation
Yoshinori Maegawa
G01 - MEASURING TESTING
Information
Patent Grant
Apparatus for detecting a condition of burning in an internal combu...
Patent number
6,644,274
Issue date
Nov 11, 2003
Denso Corporation
Jun Hasegawa
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Blow-by gas passage abnormality detecting system for internal combu...
Patent number
6,338,329
Issue date
Jan 15, 2002
Denso Corporation
Yoshinori Maegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Blow-by gas passage abnormality detecting system for internal combu...
Patent number
6,247,464
Issue date
Jun 19, 2001
Denso Corporation
Yoshinori Maegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Blow-by gas passage abnormality detecting system for internal combu...
Patent number
6,098,603
Issue date
Aug 8, 2000
Denso Corporation
Yoshinori Maegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Fuel property detection for an engine using engine speed
Patent number
5,711,272
Issue date
Jan 27, 1998
Denso Corporation
Yoshinori Maegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Exhaust gas recirculation system
Patent number
5,653,212
Issue date
Aug 5, 1997
Nippondenso Co., Ltd.
Minoru Hotta
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
ABNORMALITY DETECTION DEVICE FOR INTERNAL COMBUSTION ENGINE
Publication number
20180238273
Publication date
Aug 23, 2018
Denso Corporation
Yoshinori MAEGAWA
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
LEAKAGE DIAGNOSIS APPARATUS FOR EVAPORATED-GAS PURGE SYSTEM
Publication number
20140224212
Publication date
Aug 14, 2014
DENSON CORPORATION
Ryo TAMURA
G01 - MEASURING TESTING
Information
Patent Application
FLOW DIAGNOSIS APPARATUS FOR FUEL VAPOR PURGE SYSTEM
Publication number
20090266147
Publication date
Oct 29, 2009
DENSO CORPORATION
Yoshinori MAEGAWA
G01 - MEASURING TESTING
Information
Patent Application
ABNORMALITY DIAGNOSIS APPARATUS FOR INTERNAL COMBUSTION ENGINE
Publication number
20080110239
Publication date
May 15, 2008
DENSO CORPORATION
Yoshinori MAEGAWA
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Air-fuel ratio control apparatus of internal combustion engine
Publication number
20070251509
Publication date
Nov 1, 2007
DENSO CORPORATION
Tomoaki Nakano
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Deterioration diagnosis system for exhaust gas sensor
Publication number
20070227124
Publication date
Oct 4, 2007
DENSO CORPORATION
Kenichi Fujiki
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Evaporated fuel treatment system for internal combustion engine
Publication number
20070199548
Publication date
Aug 30, 2007
DENSO CORPORATION
Yoshinori Maegawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Leak-check apparatus of fuel-vapor-processing system, fuel-temperat...
Publication number
20050039525
Publication date
Feb 24, 2005
DENSO CORPORATION
Keiji Wakahara
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Misfire detector for an internal combustion engine
Publication number
20040144165
Publication date
Jul 29, 2004
Denso Corporation
Jun Yamada
G01 - MEASURING TESTING
Information
Patent Application
Apparatus and method for diagnosis of vehicular system
Publication number
20030182050
Publication date
Sep 25, 2003
Yoshinori Maegawa
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
Fuel vapor handling system
Publication number
20030075156
Publication date
Apr 24, 2003
Syujiro Morinaga
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Leak check for fuel vapor purge system
Publication number
20030056573
Publication date
Mar 27, 2003
Makoto Miwa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Fuel vapor control system with leak check
Publication number
20030051540
Publication date
Mar 20, 2003
Syujiro Morinaga
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Leak-check apparatus of fuel-vapor-processing system, fuel-temperat...
Publication number
20030019286
Publication date
Jan 30, 2003
Keiji Wakahara
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Application
Apparatus for detecting a condition of burning in an internal combu...
Publication number
20020050271
Publication date
May 2, 2002
Jun Hasegawa
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Misfire detection apparatus for internal combustion engine
Publication number
20020016666
Publication date
Feb 7, 2002
Yoshinori Maegawa
G01 - MEASURING TESTING
Information
Patent Application
Blow-by gas passage abnormality detecting system for internal combu...
Publication number
20010010214
Publication date
Aug 2, 2001
DENSO Corporation
Yoshinori Maegawa
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...