Patents by Inventor Delbert L. Olson

Delbert L. Olson 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 coating a magnetic recording medium and apparatus
    Patent number: 5449525
    Abstract: A method for producing a magnetic recording medium while minimizing electrostatic charge buildup on the medium during production. The method comprises applying a liquid material over a surface of a moving web to form a continuous wet coating thereon and smoothing the wet coating with a flexible blade having two major surfaces. The flexible smoothing blade comprises a conductive layer and is positioned so that a portion of one major surface is in contact with the wet coating so that electrostatic charge on the coated web is continuously dissipated.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: September 12, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David J. Lundberg, David R. Boston, Delbert L. Olson, William L. Kausch