Patents by Inventor Vaughn W. Halling

Vaughn W. Halling 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 producing magneto-optic recording medium
    Patent number: 5028305
    Abstract: A method for producing a magneto-optic layer includes depositing amorphous magnetizable film layer on a substrate using a triode sputtering process. The magneto-optic layer includes an alloy of terbium, cobalt, iron, chromium and an oxygen content approximately between 2-6 atom percent midway through the thickness of the layer.
    Type: Grant
    Filed: April 23, 1990
    Date of Patent: July 2, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard F. Willson, Vaughn W. Halling
  • Magneto-optic recording medium
    Patent number: 4950556
    Abstract: A method for producing a magneto-optic layer includes depositing amorphous magnetizable film layer on a substrate using a triode sputtering process. The magneto-optic layer includes an alloy of terbium, cobalt, iron, chromium and an oxygen content approximately between 2-6 atom percent midway through the thickness of the layer.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: August 21, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Richard F. Willson, Vaughn W. Halling
  • Optical recording medium of high sensitivity
    Patent number: 4556893
    Abstract: Optical recording medium having a laser-recordable light-absorbing layer which is a carbide of iron or chromium has surprisingly high sensitivity. High carrier-to-noise ratios are attained using a laser-diode recording system at power levels below 10 mW.
    Type: Grant
    Filed: February 15, 1983
    Date of Patent: December 3, 1985
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Thomas A. Rinehart, Richard F. Willson, Vaughn W. Halling