Townsend and Townsend
Disk spindle motor cap
 The present invention is a disk spindle motor cap. By affixing the cap to the cylindrical shaft of a disk drive, the amount of magnetic ferrofluid escaping from the well between the hub and the cylindrical shaft of the disk spindle assembly is reduced. 
Microscience International Corp.
H
H02K
inventional
Yu-Chuan
Lee