Patents by Inventor Hauqing Yin

Hauqing Yin 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).

  • Patent number: 9972345
    Abstract: A method includes depositing a layer of pole material on a substrate. The layer of pole material has a bottom surface that is adjacent to the substrate and a top surface that is opposite the bottom surface. A masking material is deposited over a portion of the top surface. Material from the pole material unprotected by the masking material is removed to form a write pole having first and second side walls. At least a portion of a trench formed by removal of the material from the layer of pole material is filled with a sacrificial material. The mask and a portion of the write pole at the top surface are removed to form a beveled trailing edge surface. The sacrificial material is then removed. Front shield gap material is deposited over the beveled trailing edge surface and over portions of the side walls.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 15, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Wei Tian, Hauqing Yin, Lei Lu, Yong Luo, Joseph Mundenar