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:
Jan. 06, 2015
Filed:
Apr. 28, 2014
Hgst Netherlands B.v., Amsterdam, NL;
Mikito Sugiyama, Odawara, JP;
Hiromi Shiina, Hitachi, JP;
Kazue Kudo, Odawara, JP;
Yasuhiro Wakabayashi, Hiratsuka, JP;
Shouji Tokutake, Odawara, JP;
HGST Netherlands B.V., Amersterdam, NL;
Abstract
A magnetic write head for magnetic data recording that has a magnetic write pole and a magnetic side shield structure, wherein the flare angle and bevel angle of the write pole are different from the flare angle and bevel angle of the magnetic side shield structure. The magnetic side shield has a flare angle that is greater than that of the write pole, and has a bevel angle that is smaller than that of the write pole. This advantageously provides a strong write field, while also preventing adjacent track and far track interference. The write head can include a bi-layer non-magnetic side gap structure, wherein one layer of the bi-layer side gap structure has a uniform thickness and the other layer has a non-uniform thickness.