Inventor

Yoshiharu Inaguma

Inventor

Nagoya, JP

Overview

1980–2009

Patent span

Performing operations

Primary field (CPC B)

Patents· 24 as inventor

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

B62Dprimary

B62DMotor vehicles46%

F04CRotary-piston, or oscillating-piston, positive-displacement machines for liquids13%

Y10TTechnical subjects covered by former us classification13%

F16HGearing8%

F01CRotary-piston or oscillating-piston machines or engines5%

F04BPositive-displacement machines for liquids5%

F15BSystems acting by means of fluids in general5%

F01PCooling of machines or engines in general3%

F16CShafts3%

PatentTitleYear

7,581,618'Transmission ratio variable steering device'2009 7,303,045'Motor vehicle steering device'2007 7,128,542'Variable displacement pump'2006 6,973,990'Electronic control power steering device'2005 6,938,724'Motor vehicle steering device'2005 6,497,565'Pump apparatus having drive force input portion aligned with pump shaft bearing member'2002 6,491,130'Electric power steering apparatus'2002 6,216,815'Power steering apparatus'2001 6,071,013'Hydraulic bearing device'2000 6,041,807'Flow control device of power steering apparatus'2000 5,651,423'Power steering apparatus'1997 5,577,573'Hydraulic power steering apparatus'1996 5,558,177'Power steering apparatus'1996 5,515,938'Hydraulic power steering apparatus'1996 5,439,070'Hydraulic power steering apparatus'1995 5,372,214'Power steering apparatus'1994 5,226,802'Variable-displacement vane pump'1993 4,798,050'Control system for hydraulic tandem pump in motor vehicle'1989 4,632,204'Power assisted steering system'1986 4,593,783'Power steering system'1986 4,496,288'Vane type pump with a variable capacity for power steering devices'1985 4,476,529'Control system for a power steering device'1984 4,347,048'Hydraulic pump for power steering'1982 4,220,072'Power steering apparatus'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–2006Patents assigned to TOYODA MACHINE WORKS LTD (21)· patent assignee history

1980–1989Patents assigned to TOYOTA MOTOR CO LTD (3)· patent assignee history

1980–2009Based in Nagoya, JP· patent location history

1986–2007Based in Kariya, JP· patent location history

2007–2009Patents assigned to JTEKT CORP (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TOYODA MACHINE WORKS LTD	21	1980–2006
TOYOTA MOTOR CO LTD	3	1980–1989
JTEKT CORP	2	2007–2009

Locations

Location	Patents	Span
Nagoya, JP	19	1980–2009
Kariya, JP	5	1986–2007