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:
Jun. 23, 2009
Filed:
Jan. 12, 2005
Yimin Hsu, Sunnyvale, CA (US);
Jyh-shuey Lo, San Jose, CA (US);
Yimin Hsu, Sunnyvale, CA (US);
Jyh-Shuey Lo, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
A method for independently controlling track width and bevel angle of a write pole tip having a Ppole tip for perpendicular recording. The method includes establishing the track width in a portion of the Player material. A portion of this portion having the established track width is protected by providing a temporary masking material to make a protected portion. At least one unprotected portion is left exposed to be shaped. This unprotected portion is then beveled to produce at least one beveled portion having a bevel angle. The protected portion produces a rectangular portion which together with the beveled portion produce a hexagonal pole tip. Also a magnetic head having a hexagonal pole tip, and a disk drive having a magnetic head having a hexagonal pole tip.