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:
Dec. 31, 2013
Filed:
Apr. 22, 2008
Applicants:
Thomas E. Karis, Aromas, CA (US);
Neal B. Schirle, Morgan Hill, CA (US);
Kunihiro Shida, San Jose, CA (US);
Inventors:
Thomas E. Karis, Aromas, CA (US);
Neal B. Schirle, Morgan Hill, CA (US);
Kunihiro Shida, San Jose, CA (US);
Assignee:
HGST Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 17/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fluid dynamic bearing with an immiscible fluid barrier deposited on the bearing oil is disclosed. One embodiment provides the fluid dynamic bearing having a seal gap to define a seal cavity. The seal cavity is filled with the bearing oil for lubricating the fluid dynamic bearing. The immiscible fluid is disposed on the bearing oil to prevent the bearing oil from evaporating from the seal cavity. In one embodiment, the immiscible fluid is insoluble in the bearing oil.