Inventor

Yoshiaki Asayama

Inventor

Himeji, JP

Overview

41→

Patents

1981–1997

Patent span

Physics

Primary field (CPC G)

Patents· 41 as inventor

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

F02Dprimary

F02DControlling combustion engines18%

G01SRadio direction-finding14%

F02MSupplying combustion engines in general with combustible mixtures or constituents thereof11%

G01FMeasuring volume, volume flow, mass flow or liquid level11%

G01NInvestigating or analysing materials by determining their chemical or physical properties7%

Y02TClimate change mitigation technologies related to transportation6%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles5%

G05DSystems for controlling or regulating non-electric variables5%

B60QArrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general4%

F02BInternal-combustion piston engines4%

PatentTitleYear

5,633,705'Obstacle detecting system for a motor vehicle'1997 5,424,952'Vehicle-surroundings monitoring apparatus'1995 5,386,285'Obstacle detecting device for a vehicle'1995 5,381,173'Inter-car distance detecting device for tracking a car running ahead'1995 5,291,424'Distance detecting apparatus'1994 5,223,907'Guard rail detecting device'1993 5,214,408'Distance detecting apparatus for a vehicle'1993 5,187,537'Vehicle following apparatus'1993 5,168,355'Apparatus for detecting distance between cars'1992 5,165,108'Vehicle-to-vehicle distance detecting apparatus'1992 5,161,632'Tracking control device for a vehicle'1992 5,113,822'Throttle valve control apparatus for an internal combustion engine'1992 5,046,575'Throttle control apparatus for an internal combustion engine'1991 5,026,153'Vehicle tracking control for continuously detecting the distance and direction to a preceding vehicle irrespective of background dark/light distribution'1991 4,970,902'Karman\'s vortex flow meter'1990 4,892,071'Throttle valve controlling apparatus employing electrically controlled actuator'1990 4,873,957'Throttle valve control apparatus'1989 4,872,435'Throttle valve controlling apparatus including relative position limiting means for throttle valves'1989 4,872,437'Fuel pressure regulator for internal combustion engine'1989 4,829,964'Fluid pressure regulator'1989 4,790,286'EGR control device for internal combustion engine'1988 4,768,483'Throttle valve control apparatus for an automobile'1988 4,705,009'Exhaust gas recirculation control system for an engine'1987 4,657,640'Method of sensing air-to-fuel ratio sensor of an engine'1987 4,614,175'Engine exhaust gas recirculation control system'1986 4,601,793'Sensing air-to-fuel ratio for engine'1986 4,594,139'Air/fuel ratio detector'1986 4,586,476'Air-to-fuel ratio detector for engines'1986 4,568,443'Air-to-fuel ratio sensor'1986 4,481,926'Fuel injection system for an internal combustion engine'1984 4,481,927'Apparatus for supplying fuel into an internal combustion engine'1984 4,478,087'Karman\'s vortex street flow meter'1984 4,457,281'Fuel injection device for a multicylinder engine'1984 4,455,985'Electronic control type fuel injection apparatus'1984 4,448,064'Device for detecting the intake air flow rate in an internal combustion engine'1984 4,446,824'Suction system in an engine'1984 4,433,663'Electronically controlled fuel injection device'1984 4,392,385'Flow meter utilizing Karman vortex street'1983 4,380,934'Gaseous fluid flow meter utilizing karman vortex street'1983 4,361,119'Suction system in an engine'1982 4,299,121'Suction system in an engine'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1997Patents assigned to MITSUBISHI ELECTRIC CORP (41)· patent assignee history

1981–1997Based in Himeji, JP· patent location history

1983–1990Patents assigned to OVAL ENG CO LTD (3)· patent assignee history

1984Patents assigned to MITSUBISHI MOTORS CORP (1)· patent assignee history

1984–1995Based in Hyogo, JP· patent location history

1986Patents assigned to NGK SPARK PLUG CO (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI ELECTRIC CORP	41	1981–1997
NGK SPARK PLUG CO	3	1986
OVAL ENG CO LTD	3	1983–1990
MITSUBISHI MOTORS CORP	1	1984

Locations

Location	Patents	Span
Himeji, JP	26	1981–1997
Hyogo, JP	15	1984–1995