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. 13, 2012
Filed:
Jun. 09, 2010
Sharat Batra, Fremont, CA (US);
Adam F. Torabi, Pleasanton, CA (US);
Matthew R. Gibbons, San Jose, CA (US);
Yugang Wang, Milpitas, CA (US);
Kroum S. Stoev, Pleasanton, CA (US);
Sharat Batra, Fremont, CA (US);
Adam F. Torabi, Pleasanton, CA (US);
Matthew R. Gibbons, San Jose, CA (US);
Yugang Wang, Milpitas, CA (US);
Kroum S. Stoev, Pleasanton, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
An energy assisted magnetic recording (EAMR) transducer coupled with a laser is described. The EAMR transducer has an air-bearing surface (ABS) residing near a media during use. The EAMR transducer includes optical and writer modules. The optical module includes a waveguide and a near field transducer (NFT). The waveguide directs the energy from the laser toward the ABS. The NFT focuses the energy onto the media. The optical and writer modules are physically separate such that no portion of the waveguide is interleaved with a magnetic portion of the writer module. The writer module includes a write pole and coil(s). The write pole includes a pole-tip portion for providing a magnetic field to the media and a yoke. The pole-tip portion has an ABS-facing surface, a sloped surface, and a NFT-facing surface therebetween. The sloped surface is at least twenty-five and not more than sixty-five degrees from the NFT-facing surface.