Inventor

Tokio Kohama

Inventor

Nishio, JP

Overview

1976–2003

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 87 as inventor

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

F02Dprimary

F02DControlling combustion engines23%

G01FMeasuring volume, volume flow, mass flow or liquid level15%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof13%

Y02TClimate change mitigation technologies related to transportation11%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure6%

F02BInternal-combustion piston engines5%

F01NGas-flow silencers or exhaust apparatus for machines or engines in general4%

F16HGearing3%

F02PIgnition, other than compression ignition, for internal-combustion engines2%

B01DSeparation2%

PatentTitleYear

6,604,424'Pressure detecting apparatus and installation structure of same'2003 6,265,814'Spark plug having a bypass electrode extending along a bypass path between center and ground electrode'2001 6,227,169'Fuel supply system for internal combustion engines having fuel leakage restricting structure'2001 6,105,552'Abnormal combustion detection apparatus and method for internal combustion engine'2000 6,104,195'Apparatus for detecting a condition of burning in an internal combustion engine'2000 6,026,781'Fuel injection control device of cylinder direct injection engine'2000 6,020,742'Combustion monitoring apparatus for internal combustion engine'2000 5,970,963'Apparatus for preventing flow noise in throttle valve'1999 5,925,819'Combustion monitoring apparatus for internal combustion engine'1999 5,915,364'Canister for use in evaporative emission control system for automotive vehicle'1999 5,914,457'Activated charcoal canister'1999 5,791,043'Process of producing metal catalyst carrier'1998 5,749,330'Cooling system for an internal combustion engine'1998 5,692,480'Evaporative emission control system for automotive vehicle'1997 5,692,052'Engine noise control apparatus'1997 5,658,536'Exhaust gas purifying apparatus'1997 5,446,790'Intake sound control apparatus'1995 5,439,204'Vibration isolator'1995 5,343,841'Intake control device of internal combustion engine'1994 5,080,065'Air intake control system for an internal combustion engine'1992 4,858,568'Intake apparatus for internal combustion engine'1989 4,796,584'Intake control system for internal combustion engine and intake control valve used therein'1989 4,739,483'Automatic transmission control system for an automobile'1988 4,702,940'Method of producing filter for air cleaner'1987 4,693,116'Semiconductor-chip gas-flow measuring apparatus'1987 4,691,286'Method and apparatus for detecting combustion variations in internal combustion engine'1987 4,682,496'Flow rate detecting apparatus having semiconductor chips'1987 4,677,850'Semiconductor-type flow rate detecting apparatus'1987 4,633,840'Method for controlling air-fuel ratio in internal combustion engine'1987 4,635,200'System for controlling air-fuel ratio in an internal combustion engine'1987 4,627,404'Method and apparatus for controlling air-fuel ratio in internal combustion engine'1986 4,616,619'Method for controlling air-fuel ratio in internal combustion engine'1986 4,592,241'Torque detector'1986 4,587,843'Thermocouple-type gas-flow measuring apparatus'1986 4,562,818'Method and apparatus for controlling the air-fuel ratio in an internal combustion engine'1986 4,550,618'Torque detector'1985 4,550,308'Signal converting apparatus'1985 4,537,172'Fuel supply control apparatus for an internal-combustion engine'1985 4,532,798'Measurement of variations in internal combustion engine output'1985 4,517,648'Torque variation detecting method and apparatus for internal combustion engine'1985 4,513,721'Air-fuel ratio control device for internal combustion engines'1985 4,513,626'Torque detector'1985 4,513,628'Torque detector'1985 4,513,627'Torque detector'1985 4,503,713'Dual sensitivity torque detector'1985 4,499,882'System for controlling air-fuel ratio in internal combustion engine'1985 4,489,695'Method and system for output control of internal combustion engine'1984 4,478,185'Air-fuel ratio and ignition timing regulation by detecting engine running condition'1984 4,475,388'Thermal flowmeter with temperature compensation'1984 4,471,655'Gas flow rate measuring apparatus'1984 4,442,820'Exhaust recirculation system for internal combustion engines'1984 4,437,345'Gas flow measuring device'1984 4,434,767'Output control system for multicylinder internal combustion engine'1984 4,425,792'Apparatus for measuring a fluid flow rate'1984 4,417,471'Gas flow measuring device'1983 4,414,847'Gas flow measuring apparatus'1983 4,409,828'Gas flow measuring device'1983 4,399,697'Gas flow measuring apparatus'1983 4,393,702'Gas flow measuring device'1983 4,391,132'Gas flow measuring apparatus'1983 4,384,484'Gas flow measuring device'1983 4,357,830'Gas flow measuring apparatus'1982 4,332,165'Gas flow measuring device'1982 4,322,799'Exhaust gas recirculation valve control system and method'1982 4,304,129'Gas flow measuring apparatus'1981 4,276,773'Gas flow measuring apparatus'1981 4,275,590'Gas flow measuring apparatus'1981 4,257,382'Electronic control system for internal combustion engines'1981 4,250,855'Electronic control system for carburetor'1981 4,248,187'Electronic control system for internal combustion engines'1981 4,242,997'Exhaust gas recirculation system for internal combustion engines'1981 4,230,079'Exhaust gas recirculation system for internal combustion engines'1980 4,226,222'Exhaust gas recirculation system for internal combustion engines'1980 4,222,237'Exhaust gas purifying apparatus for internal combustion engine'1980 4,200,843'Non-linear operational circuit'1980 4,196,706'Exhaust gas recirculation system for internal combustion engine'1980 4,181,110'Exhaust gas recirculation system for internal combustion engine'1980 4,149,503'Exhaust gas recirculation system for an internal combustion engine'1979 4,148,286'Exhaust gas recirculation system for an internal combustion engine'1979 4,146,986'Device for supplying secondary air for purifying exhaust gases discharged from internal combustion engine'1979 4,114,578'Air-to-fuel ratio control system'1978 4,109,462'Device for purifying exhaust gas discharged from internal combustion engine'1978 4,100,734'Exhaust gas purification system for an internal combustion engine'1978 4,089,214'Intake air amount detecting system'1978 4,074,566'Intake air amount detecting device for an internal combustion engine'1978 4,067,233'Intake air amount measuring system for an internal combustion engine'1978 3,975,951'Intake-air amount detecting system for an internal combustion engine'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2003Patents assigned to NIPPON SOKEN (80)· patent assignee history

1976–2003Based in Nishio, JP· patent location history

1980–2001Patents assigned to TOYOTA MOTOR CO LTD (17)· patent assignee history

1985–1999Patents assigned to NIPPON DENSO CO (15)· patent assignee history

1987Patents assigned to KUREHA SENI KK (1)· patent assignee history

1999–2003Patents assigned to DENSO CORP (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NIPPON SOKEN	80	1976–2003
TOYOTA MOTOR CO LTD	17	1980–2001
NIPPON DENSO CO	15	1985–1999
DENSO CORP	3	1999–2003
KUREHA SENI KK	1	1987

Locations

Location	Patents	Span
Nishio, JP	87	1976–2003