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Katsuta-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
System for diagnosing deterioration of catalyst
Patent number
7,424,801
Issue date
Sep 16, 2008
Hitachi, Ltd.
Takashi Mukaihira
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
System for diagnosing deterioration of catalyst
Patent number
7,114,326
Issue date
Oct 3, 2006
Hitachi, Ltd.
Takashi Mukaihira
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
System for diagnosing deterioration of catalyst
Patent number
7,021,044
Issue date
Apr 4, 2006
Hitachi, Ltd.
Takashi Mukaihara
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
System for diagnosing deterioration of catalyst
Patent number
6,343,466
Issue date
Feb 5, 2002
Hitachi, Ltd.
Takashi Mukaihira
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Evaporative system and method of diagnosing same
Patent number
6,305,361
Issue date
Oct 23, 2001
Hitachi, Ltd.
Yutaka Takaku
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Evaporative system and method of diagnosing same
Patent number
6,105,556
Issue date
Aug 22, 2000
Hitachi, Ltd.
Yutaka Takaku
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Diagnosis apparatus for evaporation system
Patent number
6,089,080
Issue date
Jul 18, 2000
Hitachi, Ltd.
Yutaka Takaku
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Control method and apparatus for diagnosing vehicles
Patent number
6,085,132
Issue date
Jul 4, 2000
Hitachi, Ltd.
Toshio Ishii
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Control method and apparatus for diagnosing vehicles
Patent number
5,964,811
Issue date
Oct 12, 1999
Hitachi, Ltd.
Toshio Ishii
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Internal combustion engine controller with exhaust gas purification...
Patent number
5,819,530
Issue date
Oct 13, 1998
Hitachi, Ltd.
Seiji Asano
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method of diagnosing an evaporative system
Patent number
5,765,540
Issue date
Jun 16, 1998
Hitachi, Ltd.
Toshio Ishii
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Diagnosing system and method of catalytic converter for controlling...
Patent number
5,758,491
Issue date
Jun 2, 1998
Hitachi, Ltd.
Rogelio B. Agustin
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
System for diagnosing deterioration of catalyst
Patent number
5,649,420
Issue date
Jul 22, 1997
Hitachi, Ltd.
Takashi Mukaihira
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Malfunction diagnosis apparatus for internal combustion engine
Patent number
5,557,933
Issue date
Sep 24, 1996
Hitachi, Ltd.
Akihito Numata
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
System for diagnosing deterioration of catalyst
Patent number
5,526,643
Issue date
Jun 18, 1996
Hitachi, Ltd.
Takashi Mukaihira
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
System for diagnosing engine exhaust gas purifying device and syste...
Patent number
5,341,642
Issue date
Aug 30, 1994
Hitachi, Ltd.
Nobuo Kurihara
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Engine control system and method for changing acceleration response...
Patent number
5,097,809
Issue date
Mar 24, 1992
Hitachi, Ltd.
Teruji Sekozawa
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Patents Applications
last 30 patents
Information
Patent Application
System for diagnosing deterioration of catalyst
Publication number
20060168946
Publication date
Aug 3, 2006
HITACHI, LTD.
Takashi Mukaihira
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
System for diagnosing deterioration of catalyst
Publication number
20040074227
Publication date
Apr 22, 2004
Hitachi, Ltd.
Takashi Mukaihira
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Application
System for diagnosing deterioration of catalyst
Publication number
20020073693
Publication date
Jun 20, 2002
Hitachi, Ltd.
Takashi Mukaihara
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...