Patents by Inventor Roger D. Bassett

Roger D. Bassett 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).

  • Wear resistant magnetorestrictive head
    Patent number: 4225892
    Abstract: An MR head is disclosed in which the MR element is deposited onto a sapphire substrate with a particular crystallographic orientation and a sapphire closure piece also having a particular crystallographic orientation is used. The substrate has the MR element deposited onto either the {0001} or the {1120} plane with the {1100} plane being oriented as the wear surface. The closure piece has either the {1120} or the {0001} plane facing the MR material and the {1100} plane oriented as the wear surface.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: September 30, 1980
    Assignee: International Business Machines Corporation
    Inventors: Roger D. Bassett, Gerald A. Daughenbaugh, Davis S. Fields, Jr., Wayne McCormick, Rhodes W. Polleys, Ralph D. Silkensen, Gerald Steving