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. 24, 2004
Filed:
Feb. 14, 2002
Applicant:
Inventors:
Stephen G. Gonzalez, Santa Cruz, CA (US);
Christopher Rowe Hakes, Felton, CA (US);
Assignee:
Seagate Technology LLC, Scotts Valley, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/500 ;
U.S. Cl.
CPC ...
G06F 1/500 ;
Abstract
Embodiments of the invention generally provide a method for characterizing the surface topology of a hydrodynamic bearing used with a disc drive. In one embodiment, the invention provides a method to detect at least one hydrodynamic groove disposed on the hydrodynamic bearing. In another embodiment, the invention provides a method to measure the depth of at least one hydrodynamic groove. In still another aspect, the invention provides a method to establish a ratio between the hydrodynamic groove widths and the spacing between adjacent grooves.