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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.:

US 10748572 B1

PDFFull Text
Date of Patent:
Aug. 18, 2020

Filed:

Jan. 09, 2019

Waveguide having reflector for heat-assisted magnetic recording head

Applicant:

Seagate Technology Llc, Cupertino, CA (US);

Inventors:

Ruoxi Yang, Plymouth, MN (US);

Yongjun Zhao, Eden Prairie, MN (US);

Weibin Chen, Edina, MN (US);

Assignee:

Seagate Technology LLC, Fremont, CA (US);

Attorney:

Mueting Raasch Group

Primary Examiner:

Tan X Dinh

Int. Cl.
CPC ...
G11B 11/105 (2006.01); G11B 11/24 (2006.01); G11B 5/012 (2006.01); G11B 5/00 (2006.01); G11B 5/31 (2006.01); G11B 5/60 (2006.01);
U.S. Cl.
CPC ...
G11B 11/24 (2013.01); G11B 5/012 (2013.01); G11B 5/314 (2013.01); G11B 5/3143 (2013.01); G11B 5/6088 (2013.01); G11B 2005/0021 (2013.01);
Abstract

A recording head comprises a waveguide extending to an air-bearing surface, and the waveguide comprises a core surrounded by cladding layers. A near-field transducer is disposed on a first side of the core, and a reflector, comprising a layer of metallic material, is disposed on a second side of the core facing away from the first side. The reflector extends beyond the core in a cross-track direction and extends in a direction normal to the air-bearing surface. The reflector has a thickness in a downtrack direction of less than 200 nm.

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Yang, Ruoxi. (2020). Waveguide having reflector for heat-assisted magnetic recording head (U.S. Patent No. 10748572). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10748572

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