Patents by Inventor Danny D. L. Yang

Danny D. L. Yang 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).

  • Process for planarizing substrate surfaces for magnetic thin film heads
    Patent number: 5500243
    Abstract: A process for forming dielectric thin film coating suitable for use in magnetic thin film heads includes the application of a spin-on-glass material on a substrate, the spinning of the substrate, the preheating of the substrate and thin film to remove the solvents in the spin-on-glass material, and the heating in a reducing or in an inert atmosphere of the film to provide a conversion to a SiO.sub.2 film. The reducing and the inert atmospheres permit carbon to be left in the film. The presence of the carbon improves structural properties of the thin films.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: March 19, 1996
    Assignee: Eastman Kodak Company
    Inventor: Danny D. L. Yang
  • Shorted DMR reproduce head
    Patent number: 5485333
    Abstract: A shorted DMR reproduce head includes two substantially identical MR elements, separated by a thin film of titanium nitride having a resistivity of 1000 .mu..OMEGA.-cm. Signal loss due to current shunting in the shorted DMR head is significantly reduced by use of the titanium nitride film.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: January 16, 1996
    Assignee: Eastman Kodak Company
    Inventors: Danny D. L. Yang, Jay D. Freeman