Inventor

Shigeki Ohtagaki

Inventor

Tokyo, JP

Overview

23→

Patents

1986–2005

Patent span

Performing operations

Primary field (CPC B)

Patents· 23 as inventor

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

B60Gprimary

B60GVehicle suspension arrangements31%

B62DMotor vehicles29%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles6%

F16FSprings6%

F16HGearing6%

H02PControl or regulation of electric motors, electric generators or dynamo-electric converters6%

B60WConjoint control of vehicle sub-units of different type or different function3%

E04HBuildings or like structures for particular purposes3%

F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems3%

G05DSystems for controlling or regulating non-electric variables3%

PatentTitleYear

6,902,028'Electric power steering control system'2005 6,863,150'Electric power steering control apparatus'2005 6,860,361'Electric power steering control system'2005 6,799,656'Control apparatus for motor-driven power-steering system of motor vehicle'2004 6,711,483'Power steering system'2004 6,583,594'Electric power steering apparatus'2003 6,497,303'Electric power steering system'2002 6,016,042'Method of detecting the angle of rotation and load torque of a DC motor, and apparatus of detecting the angle of rotation and load torque of a DC motor'2000 5,913,913'Control apparatus for motor-driven power steering system of motor vehicle'1999 5,889,376'Motor driving apparatus'1999 5,442,554'Suspension control system'1995 5,387,005'Suspension control system using a variable threshold value to limit the amplitude of vertical vibrations'1995 5,375,872'Suspension control device'1994 5,338,058'Damping force control system for vehicle suspension'1994 5,314,378'Rear differential gear lock controller with automatic unlock control means'1994 5,257,672'Rear differential gear lock controller including diagnostic system for determining vehicle speed sensor failure'1993 5,072,965'Suspension control device'1991 4,977,506'Suspension control apparatus for an automotive vehicle'1990 4,887,840'Suspension control apparatus for a vehicle'1989 4,856,813'Vehicle suspension apparatus'1989 4,856,815'Vehicle suspension apparatus'1989 4,803,630'Vehicle height control system'1989 4,624,478'Suspension device for automobile'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2005Patents assigned to MITSUBISHI ELECTRIC CORP (22)· patent assignee history

1986–1995Patents assigned to MITSUBISHI MOTORS CORP (5)· patent assignee history

1986–1995Based in Himeji, JP· patent location history

1989Patents assigned to MITSUBHISHI DENKI KABUSHIKI KA (1)· patent assignee history

1989Patents assigned to MITSUBISHI JIDOSHIA KOGYO KABU (1)· patent assignee history

1991–1995Based in Hyogo, JP· patent location history

1999–2005Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MITSUBISHI ELECTRIC CORP	22	1986–2005
MITSUBISHI MOTORS CORP	5	1986–1995
MITSUBHISHI DENKI KABUSHIKI KA	1	1989
MITSUBISHI JIDOSHIA KOGYO KABU	1	1989

Locations

Location	Patents	Span
Tokyo, JP	10	1999–2005
Himeji, JP	7	1986–1995
Hyogo, JP	6	1991–1995