Patents by Inventor Yongjun Zhoa

Yongjun Zhoa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Near-field transducer
    Patent number: 8929181
    Abstract: An apparatus includes a waveguide core having an elongated edge parallel to a substrate plane of the apparatus. An output end of the waveguide core faces a media-facing surface of the apparatus. A plate-like portion of a plasmonic material has a major surface facing the elongated edge of the waveguide core, and the major surface has a narrowed output end facing the media-facing surface. An elongated ridge of the plasmonic material is disposed on at least part of the plate-like portion between an input end and the narrowed output end.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: January 6, 2015
    Assignee: Seagate Technology LLC
    Inventors: Chubing Peng, Edward Charles Gage, Yongjun Zhoa
  • NEAR-FIELD TRANSDUCER
    Publication number: 20140226450
    Abstract: An apparatus includes a waveguide core having an elongated edge parallel to a substrate plane of the apparatus. An output end of the waveguide core faces a media-facing surface of the apparatus. A plate-like portion of a plasmonic material has a major surface facing the elongated edge of the waveguide core, and the major surface has a narrowed output end facing the media-facing surface. An elongated ridge of the plasmonic material is disposed on at least part of the plate-like portion between an input end and the narrowed output end.
    Type: Application
    Filed: April 15, 2014
    Publication date: August 14, 2014
    Applicant: Seagate Technology LLC
    Inventors: Chubing Peng, Edward Charles Gage, Yongjun Zhoa