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. 12, 2014
Filed:
Dec. 06, 2011
Applicants:
Takao Suzuki, Kanagawa, JP;
Kohji Takahashi, Kanagawa, JP;
Tomoki Hiramatsu, Kanagawa, JP;
Toshihisa Kiyonaga, Kanagawa, JP;
Inventors:
Takao Suzuki, Kanagawa, JP;
Kohji Takahashi, Kanagawa, JP;
Tomoki Hiramatsu, Kanagawa, JP;
Toshihisa Kiyonaga, Kanagawa, JP;
Assignee:
HGST Netherlands B.V., Amsterdam, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 15/46 (2006.01);
U.S. Cl.
CPC ...
Abstract
A HDD including a temperature sensor for sensing ambient temperature in the HDD, a spindle motor comprising a fluid dynamic bearing; and a controller configured for adjusting a rotational speed of the spindle motor based on the measured ambient temperature while a rigidity of the fluid dynamic bearing is maintained, and reducing power consumption of the HDD based on the adjusting the rotational speed of the spindle motor.