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:
Aug. 06, 2024
Filed:
May. 23, 2023
Applicant:
Western Digital Technologies, Inc., San Jose, CA (US);
Inventor:
Takuya Matsumoto, San Jose, CA (US);
Assignee:
Western Digital Technologies, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/00 (2006.01); G11B 5/31 (2006.01); G11B 5/60 (2006.01); G11B 11/105 (2006.01); G11B 13/08 (2006.01);
U.S. Cl.
CPC ...
G11B 5/6088 (2013.01); G11B 5/314 (2013.01); G11B 11/10536 (2013.01); G11B 13/08 (2013.01); G11B 2005/0021 (2013.01);
Abstract
A heat-assisted magnetic recording (HAMR) head has a slider with a gas-bearing-surface (GBS). The slider supports a near-field transducer (NFT) with an output tip at the GBS and a main magnetic pole with a pole tip at the GBS. The pole tip has a narrow cross-track width that can be substantially the same as the cross-track width of the NFT output tip. A plasmonic layer is located between the main pole and the NFT and has a tip at the GBS between the main pole tip and the NFT output tip. The plasmonic layer may also be located on the cross-track sides of the main pole and the main pole tip.