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:
Nov. 08, 2016
Filed:
Oct. 28, 2015
Yukinori Ikegawa, Milpitas, CA (US);
Yoshitaka Sasaki, Santa Clara, CA (US);
Kazuki Sato, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Hironori Araki, Milpitas, CA (US);
Seiichiro Tomita, Milpitas, CA (US);
Yukinori Ikegawa, Milpitas, CA (US);
Yoshitaka Sasaki, Santa Clara, CA (US);
Kazuki Sato, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Hironori Araki, Milpitas, CA (US);
Seiichiro Tomita, Milpitas, CA (US);
HEADWAY TECHNOLOGIES, INC., Milpitas, CA (US);
Abstract
A magnetic head includes a main pole, a write shield and a gap section. The write shield includes a leading shield having a top surface opposed to a bottom end of the main pole. The gap section includes a leading gap section for separating the leading shield from the bottom end of the main pole. The leading gap section is formed using a first nonmagnetic layer and a second nonmagnetic layer. The first nonmagnetic layer has a first front end located closest to but at a distance from the medium facing surface. The second nonmagnetic layer has a second front end located in the medium facing surface.