Patents by Inventor Que Adrong

Que Adrong 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).

  • Method for manufacturing a magnetic tape head using an ink mask formed by printing
    Patent number: 9053718
    Abstract: A method for forming a protective overcoat onto a tape bearing surface of a tape head used for magnetic tape recording. In order to ensure optimal surface tension and liftoff properties of the ink mask, the tape bearing surface is treated with a first application of ethanol, followed by an application of polydimethylsiloxane, followed by a second application of ethanol. After this treatment an ink mask can be printed onto the tape bearing surface so as to form a mask having an opening over the location of the magnetic transducer. An etching can then be performed followed by the deposition of a protective coating such as alumina.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: June 9, 2015
    Assignee: HGST Netherlands B.V.
    Inventors: Que Adrong, Cherngye Hwang, Dung T. Nguyen, Eduardo Torres Mireles
  • METHOD FOR MANUFACTURING A MAGNETIC TAPE HEAD USING AN INK MASK FORMED BY PRINTING
    Publication number: 20150138673
    Abstract: A method for forming a protective overcoat onto a tape bearing surface of a tape head used for magnetic tape recording. In order to ensure optimal surface tension and liftoff properties of the ink mask, the tape bearing surface is treated with a first application of ethanol, followed by an application of polydimethylsiloxane, followed by a second application of ethanol. After this treatment an ink mask can be printed onto the tape bearing surface so as to form a mask having an opening over the location of the magnetic transducer. An etching can then be performed followed by the deposition of a protective coating such as alumina.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: HGST Netherlands B.V.
    Inventors: Que Adrong, Cherngye Hwang, Dung T. Nguyen, Eduardo Torres Mireles