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:
May. 24, 2005
Filed:
Sep. 05, 2002
Applicant:
Nobuyuki Sakamoto, Ome, JP;
Inventor:
Nobuyuki Sakamoto, Ome, JP;
Assignee:
Kabushiki Kaisha Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B021/04 ;
U.S. Cl.
CPC ...
Abstract
A disk drive which can be used in particular under a low temperature environment is disclosed. The drive comprises a spindle motor (SPM) being a fluid dynamics bearing motor, and rotates a disk medium by the SPM. When an ambient temperature of the drive has changed to a low temperature, current consumption by the SPM increases to maintain steady rotation of the drive. When a CPU detects that current consumption by the SPM exceeds a specified value, the CPU restricts a current supplied to a voice coil motor (VCM) such that the total current amount does not exceed a specified maximum current capacity of the drive.