Patents by Inventor Joseph M. Mundenar

Joseph M. Mundenar 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: 9396741
    Abstract: A data writer can be fabricated by constructing a write pole to continuously extend from an air bearing surface prior to depositing a first gap layer to continuously extend from the ABS in contact with a first write pole sidewall. A first side shield protrusion can then be formed on the air bearing surface to be separated from the write pole by the first gap layer. A second gap layer may be deposited to continuously extend from the first side shield protrusion along the first write pole sidewall to define a dielectric region on which a second side shield protrusion is formed with the second side shield protrusion separated from the write pole by the first and second gap layers and the first and second side shield protrusions each cantilevered from a common side shield body.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: July 19, 2016
    Assignee: Seagate Technology LLC
    Inventors: Wei Tian, XiaoHong Zhang, Joseph M. Mundenar, Dong Lin, Jia Sun
  • Patent number: 9318131
    Abstract: The present application relates to a write gap structure for a magnetic recording head. In illustrated embodiments, the write gap structure includes multiple write gap segments along a beveled pole tip surface between a top edge and a bottom edge of the beveled pole tip surface to provide a narrow write gap proximate to the air bearing surface and a larger write gap behind the air bearing surface. In illustrated embodiments, the narrow write gap segment is formed between the beveled pole tip surface and a lower back surface of front shield and the larger write gap is formed between the beveled pole tip surface and an upper back surface of the front shield.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 19, 2016
    Assignee: Seagate Technology LLC
    Inventors: Wei Tian, Huaqing Yin, Yan Dong, Joseph M. Mundenar, Jianhua Xue
  • Patent number: 9286917
    Abstract: A write pole may be formed by first depositing a dielectric layer onto a substrate and then patterning the dielectric layer to form a trench with a write pole shape. The trench is subsequently filled with the evaporation deposition of a magnetic material to form a write pole. The trench may have a greater depth dimension than width dimension.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: March 15, 2016
    Assignee: Seagate Technology LLC
    Inventors: Venkateswara R. Inturi, Aly A. Bazama, Yong Luo, Joseph M. Mundenar
  • Patent number: 9263066
    Abstract: A data writer can be configured with at least a write pole separated from a front shield by a non-magnetic gap layer. The front shield may consist of at least a seed layer and a shielding layer with the shielding layer having an easy axis coercivity along a first direction of 4 Oe or more and a hard axis coercivity along a second direction of 0.5 Oe or more.
    Type: Grant
    Filed: May 1, 2015
    Date of Patent: February 16, 2016
    Assignee: Seagate Technology LLC
    Inventors: Venkateswara Inturi, Lei Lu, Joseph M. Mundenar, Huaqing Yin
  • Publication number: 20150002963
    Abstract: The present application relates to a write gap structure for a magnetic recording head. In illustrated embodiments, the write gap structure includes multiple write gap segments along a beveled pole tip surface between a top edge and a bottom edge of the beveled pole tip surface to provide a narrow write gap proximate to the air bearing surface and a larger write gap behind the air bearing surface. In illustrated embodiments, the narrow write gap segment is formed between the beveled pole tip surface and a lower back surface of front shield and the larger write gap is formed between the beveled pole tip surface and an upper back surface of the front shield.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Wei Tian, Huaqing Yin, Yan Dong, Joseph M. Mundenar, Jianhua Xue