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:
May. 31, 2011
Filed:
Aug. 15, 2008
Yoshitaka Sasaki, Milpitas, CA (US);
Dong-hong LI, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Hiroyuki Itoh, Milpitas, CA (US);
Yoshitaka Sasaki, Milpitas, CA (US);
Dong-Hong Li, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Hiroyuki Itoh, Milpitas, CA (US);
Headway Technologies, Inc., Milpitas, unknown;
Abstract
A pole layer has an end located in a medium facing surface, the end having: a first side close to a substrate; a second side located opposite to the first side; a third side connecting an end of the first side to an end of the second side; and a fourth side connecting the other end of the first side to the other end of the second side. The second side defines a track width. The end of the pole layer located in the medium facing surface has a width that decreases toward the first side. The pole layer is disposed in a groove of a pole-layer-encasing layer made of a nonmagnetic insulating material, with a nonmagnetic conductive film provided between the encasing layer and the pole layer. The pole layer incorporates: a first layer located closer to the surface of the groove; and a second layer located farther from the surface of the groove.