Patents by Inventor Leonard J. Anderson

Leonard J. Anderson 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).

  • Palladium thick film resistor containing boron nitride
    Patent number: 5346720
    Abstract: An electrically resistive film of the type used for forming thick film resistors is formed predominantly of palladium and includes an addition of boron nitride to increase resistance, preferably in combination with tantalum oxide. A paste of palladium powder and boron nitride powder dispersed in a vaporizable vehicle is applied to a substrate and sintered to form the film. In a preferred embodiment, the substrate is a ceramic powder compact that is concurrently sintered in a co-firing process.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: September 13, 1994
    Assignee: Motorola, Inc.
    Inventors: James H. Lombard, Leonard J. Anderson
  • Palladium thick film resistor containing boron nitride
    Patent number: 5250358
    Abstract: An electrically resistive film of the type used for forming thick film resistors is formed predominantly of palladium and includes an addition of boron nitride to increase resistance, preferably in combination with tantalum oxide. A paste of palladium powder and boron nitride powder dispersed in a vaporizable vehicle is applied to a substrate and sintered to form the film. In a preferred embodiment, the substrate is a ceramic powder compact that is concurrently sintered in a co-firing process.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: October 5, 1993
    Assignee: Motorola, Inc.
    Inventors: James H. Lombard, Leonard J. Anderson