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. 22, 2016
Filed:
Dec. 28, 2015
Yoshitaka Sasaki, Santa Clara, CA (US);
Hiroyuki Ito, Milpitas, CA (US);
Kazuki Sato, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Yukinori Ikegawa, Milpitas, CA (US);
Kazumasa Yasuda, Sunnyvale, CA (US);
Yoshitaka Sasaki, Santa Clara, CA (US);
Hiroyuki Ito, Milpitas, CA (US);
Kazuki Sato, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Yukinori Ikegawa, Milpitas, CA (US);
Kazumasa Yasuda, Sunnyvale, 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 trailing shield. The trailing shield includes a first portion, a second portion, a third portion and a fourth portion. The second portion and the third portion are located on opposite sides of the first portion in the track width direction. Top surfaces of the first to third portions are coplanar with each other. The fourth portion lies on the top surfaces of the first to third portions. The first portion is higher in saturation flux density than the second to fourth portions.