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. 01, 2007
Filed:
Nov. 22, 2005
Takahiro Mori, Tokyo, JP;
Yoshihisa Higuchi, Tokyo, JP;
Takahiro Mori, Tokyo, JP;
Yoshihisa Higuchi, Tokyo, JP;
TDK Corporation, Chuo-ku, Tokyo, JP;
Abstract
A method for detecting a shock resistance performance of a magnetic head support member in a magnetic disk drive apparatus includes a step of loading a magnetic head supported by the magnetic head support member above a magnetic disk on which servo information have been preliminarily recorded, a step of measuring off-track positions of the magnetic head and reproduced outputs OUTof the magnetic head at the respective off-track positions when no shock is applied, a step of storing the measured off-track positions and the measured reproduced outputs OUTat the respective off-track positions, a step of measuring off-track positions of the magnetic head and reproduced outputs OUTof the magnetic head when a shock is applied, and a step of obtaining a change in flying height of the magnetic head from the measured reproduced output OUTof the magnetic head when the shock is applied and from the stored reproduced output OUTof the magnetic head when no shock is applied depending upon the measured off-track position of the magnetic head when the shock is applied.