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Nobuaki Kayanuma
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Gotenba, JP
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last 30 patents
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Patent Grant
Apparatus for detecting malfunction in fuel evaporative prurge system
Patent number
5,313,925
Issue date
May 24, 1994
Toyota Jidosha Kabushiki Kaisha
Takayuki Otsuka
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method and apparatus for determining deterioration of three-way cat...
Patent number
5,282,383
Issue date
Feb 1, 1994
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Failure detection device for evaporative fuel purge system
Patent number
5,245,973
Issue date
Sep 21, 1993
Toyota Jidosha Kabushiki Kaisha
Takayuki Otsuka
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Device for determining misfiring cylinder of multicylinder engine
Patent number
5,245,865
Issue date
Sep 21, 1993
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Apparatus for detecting malfunction in evaporated fuel purge system
Patent number
5,230,319
Issue date
Jul 27, 1993
Toyota Jidosha Kabushiki Kaisha
Takayuki Otsuka
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Air-fuel ratio control device for an engine
Patent number
5,207,057
Issue date
May 4, 1993
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Method and apparatus for detecting abnormal state of evaporative em...
Patent number
5,203,870
Issue date
Apr 20, 1993
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Apparatus for diagnosing abnormality in fuel injection system and f...
Patent number
5,181,499
Issue date
Jan 26, 1993
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Apparatus for determining deterioration of three-way catalyst of in...
Patent number
5,165,230
Issue date
Nov 24, 1992
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Apparatus for detecting malfunction in evaporated fuel purge system
Patent number
5,143,035
Issue date
Sep 1, 1992
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Apparatus and method for detecting abnormalities in a secondary air...
Patent number
5,119,631
Issue date
Jun 9, 1992
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double air-fuel ratio sensor system in internal combustion engine
Patent number
RE33942
Issue date
Jun 2, 1992
Toyota Jidosha Kabushiki Kaisha
Toshiyasu Katsuno
060 - Power plants
Information
Patent Grant
Method and apparatus for determining deterioration of three-way cat...
Patent number
5,088,281
Issue date
Feb 18, 1992
Toyota Jidosha Kabushiki Kaisha
Takahide Izutani
F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information
Patent Grant
Misfire detecting system in double air-fuel ratio sensor system
Patent number
5,069,035
Issue date
Dec 3, 1991
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
System for treating vaporized fuel in an internal combustion engine
Patent number
5,056,494
Issue date
Oct 15, 1991
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Air-fuel ratio feedback control system including at least downstrea...
Patent number
4,964,272
Issue date
Oct 23, 1990
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double air-fuel ratio sensor system having improved exhaust emissio...
Patent number
4,809,501
Issue date
Mar 7, 1989
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double air-fuel ratio sensor system carrying out learning control o...
Patent number
4,796,425
Issue date
Jan 10, 1989
Toyota Jidosha Kabushiki Kaisha
Toshinari Nagai
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double air-fuel ratio sensor system having improved response charac...
Patent number
4,745,741
Issue date
May 24, 1988
Toyota Jidosha Kabushiki Kaisha
Takatoshi Masui
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double air-fuel ratio sensor system in internal combustion engine
Patent number
4,739,614
Issue date
Apr 26, 1988
Toyota Jidosha Kabushiki Kaisha
Toshiyasu Katsuno
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double air-fuel ratio sensor system having improved response charac...
Patent number
4,729,219
Issue date
Mar 8, 1988
Toyota Jidosha Kabushiki Kaisha
Nobuaki Kayanuma
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double air-fuel ratio sensor system having improved response charac...
Patent number
4,703,619
Issue date
Nov 3, 1987
Toyota Jidosha Kabushiki Kaisha
Yoshiki Chujo
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Double air-fuel ratio sensor system having improved response charac...
Patent number
4,693,076
Issue date
Sep 15, 1987
Toyota Jidosha Kabushiki Kaisha
Yoshiki Chujo
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Fuel injection type internal combustion engine
Patent number
4,667,636
Issue date
May 26, 1987
Toyota Jidosha Kabushiki Kaisha
Kiyohiko Oishi
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information
Patent Grant
Internal combustion engine with multiple intake valves
Patent number
4,570,590
Issue date
Feb 18, 1986
Toyota Jidosha Kabushiki Kaisha
Taiyo Kawai
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS