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.:

US 7181826 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 27, 2007

Filed:

May. 10, 2004
Applicants:

Wenchein Hsiao, San Jose, CA (US);

Edward Hin Pong Lee, San Jose, CA (US);

Bradley D. Webb, San Jose, CA (US);

Inventors:

Wenchein Hsiao, San Jose, CA (US);

Edward Hin Pong Lee, San Jose, CA (US);

Bradley D. Webb, San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 5/127 (2006.01); G11B 5/147 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system and method are provided for manufacturing a magnetic head. Initially, a coil structure, a first pole layer, and a gap layer are formed. A second pole layer is then deposited to form a pair of flanking portions flanking a central portion of the second pole layer. Thereafter, the second pole layer is masked with a photoresist layer. During manufacture, the flanking portions of the second pole layer work in conjunction with the photoresist layer to substantially protect the coil structure from damage.


Find Patent Forward Citations

Hsiao, Wenchein. (2007). Process for protecting a magnetic head (U.S. Patent No. 7181826). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7181826

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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