Inventor
OHKUBO TSUTOMU
JP17 patents
⚠️ This page may combine multiple inventors who share the name “OHKUBO TSUTOMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NSK LTD
15 patentsUS6347558B1Feb 19, 2002
Ball screw device and linear motion device
NSK LTD52 citations95
US6978693B2Dec 27, 2005
Ball screw
NSK LTD16 citations83
US6941831B2Sep 13, 2005
Ball screw apparatus
NSK LTD12 citations83
US6581489B2Jun 24, 2003
Ball screw
NSK LTD14 citations83
US6813968B2Nov 9, 2004
Ball screw device and linear motion device
NSK LTD11 citations81
US7363835B2Apr 29, 2008
Ball screw apparatus
NSK LTD8 citations73
US6925900B2Aug 9, 2005
Ball screw
NSK LTD8 citations73
US7146869B2Dec 12, 2006
Ball screw device and linear motion device
NSK LTD10 citations72
US7222553B2May 29, 2007
Ball screw apparatus
NSK LTD4 citations62
US7201076B2Apr 10, 2007
Ball screw
NSK LTD3 citations62
US7159484B2Jan 9, 2007
Linear motion device
NSK LTD4 citations62
US6742408B2Jun 1, 2004
Ball screw mechanism
NSK LTD4 citations62
US7921743B2Apr 12, 2011
Ball screw device
NSK LTD6 citations57
US7207234B2Apr 24, 2007
Ball screw
NSK LTD5 citations54
US7530283B2May 12, 2009
Ball screw mechanism
NSK LTD0 citations51