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:
Apr. 26, 2011
Filed:
Dec. 04, 2007
Yoshitaka Sasaki, Milpitas, CA (US);
Hiroyuki Itoh, Milpitas, CA (US);
Hironori Araki, Milpitas, CA (US);
Takehiro Horinaka, Milpitas, CA (US);
Kowang Liu, Fremont, CA (US);
Erhard Schreck, San Jose, CA (US);
Yoshitaka Sasaki, Milpitas, CA (US);
Hiroyuki Itoh, Milpitas, CA (US);
Hironori Araki, Milpitas, CA (US);
Takehiro Horinaka, Milpitas, CA (US);
Kowang Liu, Fremont, CA (US);
Erhard Schreck, San Jose, CA (US);
Headway Technologies, Inc., Milpitas, CA (US);
Abstract
A magnetic head includes a pole layer and a shield. The shield includes a shield layer having a front end face located in the medium facing surface at a position forward of an end face of the pole layer along a direction of travel of the recording medium. The magnetic head further includes a stopper layer for suppressing protrusion of the front end face of the shield layer, the stopper layer being disposed adjacent to the shield layer and made of a nonmagnetic material having a linear thermal expansion coefficient of 5×10/° C. or smaller at a temperature of 25° C. to 100° C.