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. 25, 2014
Filed:
Jun. 03, 2013
Western Digital (Fremont), Llc, Fremont, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A heat assisted magnetic recording (HAMR) transducer resides on a slider, has an air-bearing surface (ABS) and has a back side. The HAMR transducer includes a target waveguide, a plurality of assistant cores and a plurality of output devices. The target waveguide has an entrance at the back side and directs energy provided by a laser from the entrance at the back side toward the ABS. The assistant cores have a plurality of assistant core entrances at the back side. The assistant cores direct energy from the assistant core entrances to the output devices. In some aspects, the assistant cores and output devices may be used in aligning the laser and the target waveguide or checking the alignment of the laser and the target waveguide.