Patents by Inventor Valeri Synogatch

Valeri Synogatch 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).

  • Tapered leading and side shields for use in a perpendicular magnetic recording head
    Patent number: 8730617
    Abstract: In one embodiment, a magnetic head includes a main pole having a trapezoidal cross-section at a media-facing surface thereof and a flared shape with a greater width in a cross-track direction at positions away from the media-facing surface, a leading shield positioned near a leading side of the main pole, wherein a leading gap is provided between the main pole and the leading shield, side shields positioned on both sides of the main pole in the cross-track direction adjacent the media-facing surface of the main pole, with side gaps provided between the main pole and both of the side shields, and a trailing gap provided on a trailing side of the main pole at the media-facing surface thereof, with a throat height of the side shields being less than the throat height of the side shields at a position closer to the trailing gap than the leading gap.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: May 20, 2014
    Assignee: HGST Netherlands B.V.
    Inventors: Wen-Chien D. Hsiao, Shiwen Huang, Edward H. P. Lee, Valeri Synogatch, Sue S. Zhang, Yi Zheng, Yuming Zhou