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:
Oct. 05, 2010
Filed:
Nov. 21, 2008
Tsuyoshi Matsumoto, Kanagawa, JP;
Futoshi Kitaizumi, Kanagawa, JP;
Yoshio Yamamoto, Tokyo, JP;
Hidetsugu Tanaka, Kanagawa, JP;
Masayuki Ishikawa, Kanagawa, JP;
Tsuyoshi Matsumoto, Kanagawa, JP;
Futoshi Kitaizumi, Kanagawa, JP;
Yoshio Yamamoto, Tokyo, JP;
Hidetsugu Tanaka, Kanagawa, JP;
Masayuki Ishikawa, Kanagawa, JP;
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
Embodiments of the present invention help to adjust the recess depth of a head element portion of a head slider. In an embodiment of the present invention, in a test step in manufacturing an HDD, the HDD examines the recess depth of a head element portion and decreases and adjusts the recess depth if the recess depth of the head element portion does not satisfy the predetermined condition. The HDD moves an actuator to a ramp of a retract position and supplies power to a heater in a head slider. If the heater power is large, the head element portion undergoes plastic deformation. The plastic deformation of the head element portion decreases the recess depth of the head element portion.