Patents by Inventor Harold R. Kokal

Harold R. Kokal 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).

  • Soft magnetic metal components manufactured by powder metallurgy and infiltration
    Patent number: 6117205
    Abstract: Corrosion-resistant, soft magnetic metal components manufactured by powder metallurgy and infiltration processes are disclosed. The magnetic components are manufactured by a powder metallurgy process using acicular metal particles to form a skeleton, and thermally infiltrating the skeleton.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: September 12, 2000
    Assignee: Magnetics International, Inc.
    Inventors: Robert F. Krause, Harold R. Kokal, Joseph H. Bularzik
  • Soft magnetic metal components manufactured by powder metallurgy and infiltration
    Patent number: 5925836
    Abstract: Corrosion-resistant, soft magnetic metal components manufactured by powder metallurgy and infiltration processes are disclosed. The magnetic components are manufactured by a powder metallurgy process using acicular metal particles to form a skeleton, and thermally infiltrating the skeleton.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: July 20, 1999
    Assignee: Magnetics International Inc.
    Inventors: Robert F. Krause, Harold R. Kokal, Joseph H. Bularzik
  • High density metal components manufactured by powder metallurgy
    Patent number: 5594186
    Abstract: A high density metal component manufactured by powder metallurgy is disclosed. The powder metallurgy method provides metal components having a density greater than 95% of theoretical density using a single sequence of uniaxial pressing and heating. The metal components are manufactured from substantially linear, acicular metal particles having a substantially triangular cross section.
    Type: Grant
    Filed: July 12, 1995
    Date of Patent: January 14, 1997
    Assignee: Magnetics International, Inc.
    Inventors: Robert F. Krause, Joseph H. Bularzik, Harold R. Kokal