Inventor

Takeki Shirai

Inventor

Tokyo, JP

Overview

54→

Patents

1993–2021

Patent span

Mechanical engineering

Primary field (CPC F)

Patents· 54 as inventor

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

F16Cprimary

F16CShafts34%

Y10TTechnical subjects covered by former us classification24%

F16HGearing18%

B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling4%

H02KDynamo-electric machines3%

B23BTurning2%

B23DPlaning2%

B21HMaking particular metal objects by rolling, e.g. screws, wheels, rings, barrels, balls1%

B23GThread cutting1%

B23PMetal-working not otherwise provided for1%

PatentTitleYear

11,108,986Semiconductor apparatus and equipment2021 8,511,896'Rolling device'2013 8,302,498'Sealed linear actuator unit'2012 D0664169'Linear actuator'2012 8,220,353'Screw device manufacturing method and screw device'2012 8,166,838'Actuator for driving movable object and motion guide apparatus for guiding motion of movable object'2012 8,132,477'Ball screw device'2012 8,123,407'Ball spline device'2012 8,016,486'Rolling guiding device'2011 7,942,579'Rolling guide device and method of manufacturing the same'2011 7,870,935'Traction drive power transmission device'2011 7,845,854'Motion guide device'2010 7,600,918'Linear guidance device'2009 7,592,768'Robot joint structure and robot finger'2009 7,296,930'Rolling guide device and manufacturing method thereof, and driving device including the rolling guide device'2007 7,175,376'Method of cutting long-sized hardened steel material and cutting device'2007 7,040,189'Circulation member of ball screw and ball screw using same'2006 6,988,861'Method and apparatus for cutting long scale hardened steel'2006 6,939,043'Rolling guide apparatus and roller connecting body'2005 6,729,759'Track rail mounting structure of rectilinear guide apparatus'2004 6,712,512'Rolling guide device and drive system using rolling guide device'2004 6,700,228'Linear motor system and driving apparatus driven by same'2004 6,558,038'Rolling guide device and drive system using rolling guide device'2003 6,513,978'Rolling element spacers for rolling guide units'2003 6,478,206'Scribing method'2002 6,402,381'Relative linear motion apparatus'2002 6,390,678'Roller connected body and linear guide device using it'2002 6,334,370'Ball screwed nut, linearly guiding apparatus using the same, ball screw for steering and method of manufacturing the ball screwed nut'2002 6,286,383'Ball screw device'2001 6,282,971'Ball screw'2001 6,247,846'Rolling element and rectilinearly-movable apparatus using the rolling element'2001 6,125,968'Lubricating oil supply system for a rolling guide apparatus'2000 6,116,783'Ball chain'2000 6,094,819'Method for manufacture of rectilinear guide unit'2000 6,080,351'Method of forming a moving block of a rolling motion guiding device'2000 6,070,479'Rolling element string and linear guide device and rolling element screw device using the same'2000 6,053,062'Linear motion apparatus'2000 6,049,988'Linear motion guiding apparatus'2000 6,045,265'Rolling motion guide apparatus and method of manufacturing movable member of rolling motion guide apparatus'2000 6,042,268'Linear roller guide device'2000 6,024,490'Linear guide device'2000 5,974,908'Ball screw'1999 5,970,666'Large-scale high strength seismic isolator'1999 5,957,586'Rolling guide unit'1999 5,951,168'Rolling guide apparatus'1999 5,947,605'Linear motion guide apparatus equipped with a plurality of rows of ball chains'1999 5,755,516'Rolling guide apparatus and method of manufacturing movable block of rolling guide apparatus'1998 5,716,139'Rolling guide unit'1998 5,653,547'Spherical joint with an elastic cap'1997 5,584,744'Machine tool'1996 5,275,492'Linear motion slide unit'1994 5,273,381'Ball screw guide unit and transporting table using the same'1993 5,263,381'Ball screw'1993 5,186,545'Reciprocating device'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2013Patents assigned to THK CO LTD (53)· patent assignee history

1993–2000Based in Ichikawa, JP· patent location history

1997–2013Based in Tokyo, JP· patent location history

1998–1999Based in Chiba, JP· patent location history

2007–2012Based in Shinagawa-ku, JP· patent location history

2012–2013Patents assigned to SHIRAI TAKEKI (7)· patent assignee history

2012–2013Patents assigned to MIYAHARA SOSHI (4)· patent assignee history

2012Patents assigned to FURUSAWA RYUJI (2)· patent assignee history

2012Patents assigned to IIDA KATSUYA (2)· patent assignee history

2021Based in Isehara, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
THK CO LTD	53	1993–2013
SHIRAI TAKEKIself	7	2012–2013
MIYAHARA SOSHI	4	2012–2013
FURUSAWA RYUJI	2	2012
IIDA KATSUYA	2	2012

Locations

Location	Patents	Span
Tokyo, JP	38	1997–2013
Ichikawa, JP	10	1993–2000
Shinagawa-ku, JP	3	2007–2012
Chiba, JP	2	1998–1999
Isehara, JP	1	2021