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. 29, 2013
Filed:
Mar. 13, 2012
Kazuhiko Hosomi, Fujisawa, JP;
Kimitoshi Eto, Odawara, JP;
Mikito Sugiyama, Odawara, JP;
Junichi Hashimoto, Kanagawa, JP;
Kazue Kudo, Odawara, JP;
Misuzu Kanai, Odawara, JP;
Kazuhiko Hosomi, Fujisawa, JP;
Kimitoshi Eto, Odawara, JP;
Mikito Sugiyama, Odawara, JP;
Junichi Hashimoto, Kanagawa, JP;
Kazue Kudo, Odawara, JP;
Misuzu Kanai, Odawara, JP;
HGST Netherlands B.V., Amsterdam, NL;
Abstract
A magnetic write head having a shield structure that provides both a leading shield and side shielding function. The magnetic shield is separated from the sides and leading edge of the write pole by a non-magnetic gap layer that has a non-uniform thickness. The non-magnetic gap layer is thicker near the leading edge and thinner at the trailing edge. This allows for increased side field gradient near the trailing edge of the write pole and decreased write field loss at the leading edge of the write pole.