Patents by Inventor Brian Dufrene

Brian Dufrene 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).

  • Fabrication method for integrated microactuator coils
    Patent number: 6683758
    Abstract: A method for fabricating an integrated coil-on-keeper assembly for use in a magnetic circuit to actuate a microactuator. The assembly is formed on a keeper substrate by patterning an insulator layer, plating at least one coil layer and patterning another insulator layer on top of each coil layer. The keeper substrate is etched to form the top keeper of the coil-on-keeper assembly.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: January 27, 2004
    Assignee: Seagate Technology LLC
    Inventors: Roger L. Hipwell, Jr., Wayne A. Bonin, Lee Walter, Barry D. Wissman, Zine-Eddine Boutaghou, Barbara J. Ihlow-Mahrer, Peter Crane, Brian Dufrene
  • Fabrication method for integrated microactuator coils
    Publication number: 20010048577
    Abstract: A method for fabricating an integrated coil-on-keeper assembly for use in a magnetic circuit to actuate a microactuator. The assembly is formed on a keeper substrate by patterning an insulator layer, plating at least one coil layer and patterning another insulator layer on top of each coil layer. The keeper substrate is etched to form the top keeper of the coil-on-keeper assembly.
    Type: Application
    Filed: May 29, 2001
    Publication date: December 6, 2001
    Inventors: Roger L. Hipwell, Wayne A. Bonin, Lee Walter, Barry D. Wissman, Zine-Eddine Boutaghou, Barbara J. Ihlow-Mahrer, Peter Crane, Brian Dufrene