LexDanaLexDanabeta
Inventor

Kiyohiko Oishi

Inventor
Susono, JP

Overview

17→
Patents
1977–1994
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 17 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

Y02Tprimary
Y02TClimate change mitigation technologies related to transportation23%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general14%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests14%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof12%
F02BInternal-combustion piston engines11%
B01DSeparation7%
F02DControlling combustion engines7%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry4%
F01LCyclically operating valves for machines or engines2%
F02FCylinders, pistons or casings, for combustion engines2%
PatentTitleYear
5,294,421'Method for catalytically purifying exhaust gas'19945,155,994'Exhaust gas purification system for an internal combustion engine'19925,141,906'Catalyst for purifying exhaust gas'19924,667,636'Fuel injection type internal combustion engine'19874,608,948'Air intake device of an internal combustion engine'19864,574,748'Air intake device of an internal combustion engine'19864,549,398'Exhaust gas cleaning device for diesel engines'19854,538,412'Exhaust gas cleaning device for diesel engines'19854,485,622'Exhaust gas cleaning device for internal combustion engine'19844,404,795'Method of and apparatus for reducing emitted amount of particulates contained in exhaust gas of diesel engine'19834,404,798'Exhaust gas cleaning device for internal combustion engine'19834,386,497'Exhaust gas cleaning device for internal combustion engine'19834,272,460'Variable venturi type carburetor'19814,264,537'Variable venturi type carburetor'19814,242,997'Exhaust gas recirculation system for internal combustion engines'19814,110,979'Apparatus for introducing secondary air into an exhaust system of an internal combustion engine'19784,063,536'Apparatus for feeding water into the air/fuel mixture passage of an internal combustion engine'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1994Patents assigned to TOYOTA MOTOR CO LTD (16)· patent assignee history
1977–1992Based in Susono, JP· patent location history
1981–1984Patents assigned to NIPPON SOKEN (4)· patent assignee history
1983Patents assigned to TOYODA CHUO KENKYUSHO KK (1)· patent assignee history
1992–1994Based in Toyota, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
TOYOTA MOTOR CO LTD161977–1994
NIPPON SOKEN41981–1984
TOYODA CHUO KENKYUSHO KK11983
Locations
LocationPatentsSpan
Susono, JP151977–1992
Toyota, JP21992–1994