The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 21, 2012
Filed:
Oct. 09, 2007
Applicants:
Ferdinand Hendriks, Morgan Hill, CA (US);
Albert J. Wallash, Morgan Hill, CA (US);
Inventors:
Ferdinand Hendriks, Morgan Hill, CA (US);
Albert J. Wallash, Morgan Hill, CA (US);
Assignee:
Hitachi Global Storage Technologies, Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 17/02 (2006.01); G11B 33/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A spindle motor assembly that utilizes a fluid dynamic bearing electrically grounded to provide a conductive path through the spindle motor assembly. In one embodiment, the fluid dynamic bearing includes a liquid metal that is conductive and of low electrical resistance that provides the conductive path between the spindle and the spindle housing.