Patents by Inventor Ittipon Cheowanish

Ittipon Cheowanish 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: 9387568
    Abstract: Systems and methods for correcting fabrication error in magnetic recording heads using magnetic write width (MWW) measurements are provided. One such method includes separating a wafer into sections containing row bars, each row bar including magnetic recording heads, selecting a first row bar from a first section of the sections, lapping the first row bar to form sliders, performing a test of a magnetic write width (MWW) on each of the sliders, calculating a first error profile for the first row bar based on results of the magnetic write width tests, generating a second error profile for a stripe height of a component of the sliders based on the first error profile, where the component is selected from a magnetic read head and a magnetic write head, and lapping a second row bar from the row bars of the first section using the second error profile.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: July 12, 2016
    Assignee: Western Digital Technologies, Inc.
    Inventors: Reymon G. Ilaw, Augustus C. Calub, Theera Yaemglin, Manit Kiatkhumjaikajorn, Ittipon Cheowanish
  • Patent number: 8339742
    Abstract: A slider having an air bearing surface and a leading face is described. The slider comprises a leading edge blend comprising a first curved surface formed at an intersection of the air bearing surface and the leading face. The slider further comprises at least one step feature having a second surface with a first portion recessed from the air bearing surface and a second portion recessed from and conformal to the first curved surface of the leading edge blend.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: December 25, 2012
    Assignee: Western Digital (Fremont), LLC
    Inventors: Eric T. Sladek, Mark D. Moravec, Hariharakeshava S. Hegde, Ittipon Cheowanish
  • Patent number: 8087973
    Abstract: A method of forming a slider includes forming a leading edge blend on a leading edge of the slider. After the leading edge blend is formed, the method further includes forming at least one step feature conformal to the leading edge blend. A slider having an air bearing surface includes a leading edge blend and at least one step feature conformal to the leading edge blend.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: January 3, 2012
    Assignee: Western Digital (Fremont), LLC
    Inventors: Eric T. Sladek, Mark D. Moravec, Hariharakeshava S. Hegde, Ittipon Cheowanish