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:
Apr. 28, 2009
Filed:
Apr. 11, 2005
Wen-chien Hsiao, San Jose, CA (US);
Terence Lam, Cupertino, CA (US);
Bernd Lamberts, Cupertino, CA (US);
Yinshi Liu, Foster City, CA (US);
Terry Olson, Santa Cruz, CA (US);
Michael Yang, San Jose, CA (US);
Samuel Yuan, Saratoga, CA (US);
Wen-Chien Hsiao, San Jose, CA (US);
Terence Lam, Cupertino, CA (US);
Bernd Lamberts, Cupertino, CA (US);
Yinshi Liu, Foster City, CA (US);
Terry Olson, Santa Cruz, CA (US);
Michael Yang, San Jose, CA (US);
Samuel Yuan, Saratoga, CA (US);
Hitachi Global Storage Technologies B.V., Amsterdam, NL;
Abstract
Embodiments of the present invention recite a write gap structure for a magnetic recording head. In one embodiment, the write gap structure comprises at least one layer of inert material is disposed proximate to the Ppole of a magnetic recording head. A layer of magnetic material is disposed between the layer of inert material and the Ppedestal (PP) of the magnetic recording head. In embodiments of the present invention, the write gap structure further comprises a second layer of inert material is disposed between the layer of magnetic material and the PP of the magnetic recording head. In embodiments of the present invention, the write gap structure only overlies a portion of the write gap of the magnetic recording head with reference to the throat height dimension of the write gap.