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:
Jun. 26, 2018
Filed:
Mar. 11, 2016
Hgst Netherlands B.v., Amsterdam, NL;
Takahiro Ibusuki, Shinagawa, JP;
Kouji Kataoka, Odawara, JP;
Takashi Wagatsuma, Odawara, JP;
Norihiro Okawa, Odawara, JP;
Yukimasa Okada, Odawara, JP;
Western Digital Technologies, Inc., San Jose, CA (US);
Abstract
A magnetic read element having an additional magnetic layer, 'a floating magnetic shield', formed as a part of a capping structure of a magnetoresistive element. The capping structure is formed over the magnetic free layer and includes a magnetic layer that is located between first and second non-magnetic layers. The magnetic layer can advantageously be formed with a high magnetic permeability for increased signal amplitude and increased signal resolution. In addition, because the magnetic layer of the capping layer structure acts as a magnetic shield, it can reduce effective magnetic gap spacing for increased signal resolution.