Inventor
ACHIHA HIROYA
JP5 patents
Patents
5 patentsUS6691551B2Feb 17, 2004
Traction coefficient measurement device
NSK LTD11 citations71
US6524008B1Feb 25, 2003
Ball bearing
NSK LTD12 citations71
US6719458B2Apr 13, 2004
Ball bearing
NSK LTD3 citations60
US6644094B1Nov 11, 2003
Traction coefficient measurement device
NSK LTD3 citations60
US7077575B2Jul 18, 2006
Ball bearing
NSK LTD0 citations49