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. 14, 2014
Filed:
Nov. 11, 2011
Maki Maeda, Hiratsuka, JP;
Kimitoshi Eto, Odawara, JP;
Hiromi Shiina, Hitachi, JP;
Kazue Kudo, Odawara, JP;
Masafumi Mochizuki, Chigasaki, JP;
Maki Maeda, Hiratsuka, JP;
Kimitoshi Eto, Odawara, JP;
Hiromi Shiina, Hitachi, JP;
Kazue Kudo, Odawara, JP;
Masafumi Mochizuki, Chigasaki, JP;
HGST Netherlands B.V., Amsterdam, NL;
Abstract
A magnetic write head having a gap structure that improves write head performance. The write head includes a magnetic write pole and a magnetic shield that is separated from the trailing edge of the write pole by a non-magnetic trailing gap layer and is separated from the sides of the write pole by non-magnetic side gap layers. The trailing gap extends laterally beyond the side gap layers, and a convex bump is formed at an edge of the magnetic shield at a location near the trailing end of each of the side gap layers.