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:
Jan. 25, 2011
Filed:
Dec. 16, 2008
Carl Xiaodong Che, Saratoga, CA (US);
Keung Youn Cho, San Jose, CA (US);
Soo-youl Hong, Santa Clara, CA (US);
Shuo-hao Chen, Cupertino, CA (US);
Carl Xiaodong Che, Saratoga, CA (US);
Keung Youn Cho, San Jose, CA (US);
Soo-Youl Hong, Santa Clara, CA (US);
Shuo-Hao Chen, Cupertino, CA (US);
Samsung Electronics Co., Ltd., Suwon, KR;
Abstract
A method for erasing a disk of a hard disk drive. The method includes moving the hard disk drive adjacent to an erasure head that emanates a magnetic field. The magnetic field and moving hard disk drive cause a disk of the hard disk drive to spin under a Lorentz force created by the magnetic field and moving disk. The magnetic field is applied by the erasure head for a duration that causes erasure of the entire disk. The spindle motor is not activated during the entire process. Not activating the spindle motor eliminates any Faraday coupling from the erasure head into the motor.