Patents by Inventor Mary Agnes G. Perez

Mary Agnes G. Perez 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).

  • SURFACE TREATMENT OF MAGNETIC RECORDING HEADS FOR IMPROVING THE ROBUSTNESS THEREOF
    Publication number: 20180137881
    Abstract: In one embodiment, a method includes forming a structure having a first region including a ceramic material, a second region including a plurality of particles disposed in a ceramic matrix material, and a magnetic head assembly disposed in the first region. The method also includes directing a first ion beam at a side of the first and second regions of the structure, the first ion beam including an oxidizing species to oxidize one or more portions of the particles located near the side of the second region, where the one or more oxidized portions of the particles protrude from the side of the ceramic matrix material of the second region. The method further includes directing a second ion beam at the side of the first and second regions of the structure, the second ion beam including an inert species to recess the first and second regions.
    Type: Application
    Filed: December 28, 2017
    Publication date: May 17, 2018
    Inventors: Kazuhito Miyata, Cherngye Hwang, Takefumi Kubota, Mineaki Kodama, Dorcas Gazelle Lagasca Flavier, Mary Agnes G. Perez, Eduardo Torres Mireles, Marlon Estrella Tecson
  • Surface treatment of magnetic recording heads for improving the robustness thereof
    Patent number: 9886973
    Abstract: In one embodiment, a method includes forming a structure having a first region including a ceramic material, a second region including a plurality of particles disposed in a ceramic matrix material, and a magnetic head assembly disposed in the first region. The method also includes directing a first ion beam at a side of the first and second regions of the structure, the first ion beam including an oxidizing species to oxidize one or more portions of the particles located near the side of the second region, where the one or more oxidized portions of the particles protrude from the side of the ceramic matrix material of the second region. The method further includes directing a second ion beam at the side of the first and second regions of the structure, the second ion beam including an inert species to recess the first and second regions.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: February 6, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Kazuhito Miyata, Cherngye Hwang, Takefumi Kubota, Mineaki Kodama, Dorcas Gazelle Lagasca Flavier, Mary Agnes G. Perez, Eduardo Torres Mireles, Marlon Estrella Tecson
  • SURFACE TREATMENT OF MAGNETIC RECORDING HEADS FOR IMPROVING THE ROBUSTNESS THEREOF
    Publication number: 20180005649
    Abstract: In one embodiment, a method includes forming a structure having a first region including a ceramic material, a second region including a plurality of particles disposed in a ceramic matrix material, and a magnetic head assembly disposed in the first region. The method also includes directing a first ion beam at a side of the first and second regions of the structure, the first ion beam including an oxidizing species to oxidize one or more portions of the particles located near the side of the second region, where the one or more oxidized portions of the particles protrude from the side of the ceramic matrix material of the second region. The method further includes directing a second ion beam at the side of the first and second regions of the structure, the second ion beam including an inert species to recess the first and second regions.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 4, 2018
    Inventors: Kazuhito Miyata, Cherngye Hwang, Takefumi Kubota, Mineaki Kodama, Dorcas Gazelle Lagasca Flavier, Mary Agnes G. Perez, Eduardo Torres Mireles, Marlon Estrella Tecson
  • Thin film configured to preserve alumina height in a magnetic recording head and methods of making the same
    Patent number: 9406324
    Abstract: According to one embodiment, a magnetic head slider includes: a leading edge, and a trailing edge; a media facing side (MFS) extending between the leading edge and the trailing edge; a first region located near the trailing edge, and a second region located between the first region and the leading edge; a center rail comprising: a forward segment protruding from the first region of the slider, and a posterior segment protruding from the second region of the slider; a rear rail protruding from the second region of the slider; and a secondary protective film deposited on one or more portions of the first region.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: August 2, 2016
    Assignee: HGST Netherlands B.V.
    Inventors: Jan Vincent Cullano, Estela Paguio, Mary Agnes G. Perez