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, 2016
Filed:
Nov. 18, 2013
Yoshitaka Sasaki, Santa Clara, CA (US);
Hiroyuki Ito, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Kazuki Sato, Milpitas, CA (US);
Tatsuya Shimizu, Hong Kong, CN;
Yoshitaka Sasaki, Santa Clara, CA (US);
Hiroyuki Ito, Milpitas, CA (US);
Shigeki Tanemura, Milpitas, CA (US);
Kazuki Sato, Milpitas, CA (US);
Tatsuya Shimizu, Hong Kong, CN;
HEADWAY TECHNOLOGIES, INC., Milpitas, CA (US);
SAE MAGNETICS (H.K.) LTD., Hong Kong, CN;
Abstract
A magnetic head includes a main pole, an expansion member, and a heater. The main pole has an end face located in a medium facing surface. The expansion member is located farther from the medium facing surface than is the main pole and adjacent to the main pole in a direction perpendicular to the medium facing surface. The heater heats the expansion member. The expansion member has a linear expansion coefficient higher than that of the main pole.