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. 05, 2010
Filed:
Jul. 23, 2007
Akifumi Kamijima, Tokyo, JP;
Hideyuki Yatsu, Tokyo, JP;
Hitoshi Hatate, Tokyo, JP;
Hisayoshi Watanabe, Tokyo, JP;
Atsushi Yamaguchi, Tokyo, JP;
Shingo Miyata, Tokyo, JP;
Masahiro Saito, Tokyo, JP;
Akifumi Kamijima, Tokyo, JP;
Hideyuki Yatsu, Tokyo, JP;
Hitoshi Hatate, Tokyo, JP;
Hisayoshi Watanabe, Tokyo, JP;
Atsushi Yamaguchi, Tokyo, JP;
Shingo Miyata, Tokyo, JP;
Masahiro Saito, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
Provided is a thin-film magnetic head in which the concentration of magnetic flux in the shield layer and the magnetic pole layer is suppressed. The thin-film magnetic head comprises a plurality of magnetic layers that have front surfaces reaching a head end surface on the ABS side. Further in this head, at least one of the plurality of magnetic layers has a shape in which: each of edges corresponding to both side surfaces extends so as to spread obliquely rearward with each other from an end of a straight edge in a track width direction corresponding to the front surface; and the front surface reaching the head end surface has a shape in which upper and lower corner portions in each of both end portions in the track width direction form obtuse angles or rounded shapes.