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:
Mar. 07, 2006
Filed:
Sep. 29, 2003
Yimin Hsu, Sunnyvale, CA (US);
Quang Le, San Jose, CA (US);
Hin Pong Edward Lee, San Jose, CA (US);
James Lamar Nix, Gilroy, CA (US);
Aron Pentek, San Jose, CA (US);
Kurt Rubin, San Jose, CA (US);
Neil Smith, San Jose, CA (US);
Nian Xiang Sun, Sunnyvale, CA (US);
Walter Eugene Weresin, San Jose, CA (US);
Mason Lamar Williams, San Jose, CA (US);
Yimin Hsu, Sunnyvale, CA (US);
Quang Le, San Jose, CA (US);
Hin Pong Edward Lee, San Jose, CA (US);
James Lamar Nix, Gilroy, CA (US);
Aron Pentek, San Jose, CA (US);
Kurt Rubin, San Jose, CA (US);
Neil Smith, San Jose, CA (US);
Nian Xiang Sun, Sunnyvale, CA (US);
Walter Eugene Weresin, San Jose, CA (US);
Mason Lamar Williams, San Jose, CA (US);
Hitachi Global Storage Technologies Netherlands B.V., Amsterdam, NL;
Abstract
The invention is a magnetic transducer with separated read and write heads for perpendicular recording. The write head has a trailing shield that extends from the return pole piece toward the main pole piece to form the write gap at the air-bearing surface. One embodiment of the trailing shield is a two part structure with a pedestal and a much smaller tip that confronts the main pole piece at the gap. In one embodiment a sink of non-magnetic, electrically conductive material is disposed in the separation gap between the read head and the flux bearing pole piece. The sink is preferably made of copper and does not extend to the ABS.