Patents by Inventor Eugene F. Yarkosky

Eugene F. Yarkosky 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 of preparing aluminum memory disks
    Patent number: 5437887
    Abstract: A method is provided for producing paramagnetic electroless nickel-phosphorus (ENP) coatings on zincated aluminum substrates using an ENP bath containing antimony and/or cadmium ions and/or an adjusting operating pH, which coated substrates have enhanced retention of their paramagnetic properties after being exposed to elevated temperatures on the order of 310.degree. C. as, for example, when the ENP coated substrate is further treated by sputtering operations to form another metal layer on the coated substrate to produce magnetic memory disks.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: August 1, 1995
    Assignee: Enthone-Omi, Inc.
    Inventors: Eugene F. Yarkosky, Deborah Friday, Patricia A. Cacciatore
  • Method of preparing aluminum memory disks having a smooth metal plated finish
    Patent number: 5141778
    Abstract: A method for producing extremely smooth metal coatings on zincated aluminum substrates using a special double zincating procedure and/or a specially formulated electroless metal plating bath employing a unique plating process.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: August 25, 1992
    Assignee: Enthone, Incorporated
    Inventors: Eugene F. Yarkosky, Patricia A. Cacciatore
  • Electroless nickel plating of aluminum
    Patent number: 4840820
    Abstract: A process is provided for improving the electroless nickel plating of aluminum which has been pretreated with a barrier coating such as zinc by employing multiple plating baths under controlled operating conditions.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: June 20, 1989
    Assignee: Enthone, Incorporated
    Inventors: Paul B. Schultz, Eugene F. Yarkosky
  • Electroless nickel plating of aluminum
    Patent number: 4567066
    Abstract: A process is provided for improving the electroless nickel plating of aluminum which has been pretreated with a barrier coating such as zinc by employing multiple plating baths under controlled operating conditions.
    Type: Grant
    Filed: October 23, 1984
    Date of Patent: January 28, 1986
    Assignee: Enthone, Incorporated
    Inventors: Paul B. Schultz, Eugene F. Yarkosky