Patents by Inventor Otmar H. Boser

Otmar H. Boser 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).

  • Dispersion strengthened lead-tin alloy solder
    Patent number: 5066544
    Abstract: An improved dispersion strengthened lead-tin alloy solder is provided in which there is dispersed in the solder up to about 5 vol. percent of small particles, of a metal sulfide or a nickel-tin intermetallic.
    Type: Grant
    Filed: August 27, 1990
    Date of Patent: November 19, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Hemant S. Betrabet, Otmar H. Boser, Robert H. Kane, Susan McGee, Thomas Caulfield
  • Nondestructive testing of multilayer ceramic capacitors
    Patent number: 4644259
    Abstract: A method for nondestructive testing of multilayer ceramic capacitors exhibiting piezoelectric effects only during poling by a bias voltage to determine the presence or absence of delaminations. The capacitor is inserted in an impedance bridge, a bias voltage of 1 to 2.5 times the rated voltage is applied and the impedance is measured as a function of frequency. A lower than expected impedance indicates a defective capacitor.
    Type: Grant
    Filed: October 31, 1984
    Date of Patent: February 17, 1987
    Assignee: North American Philips Corporation
    Inventor: Otmar H. Boser
  • Metallurgical contacts in hermetically sealed glass encapsulated ceramic capacitors
    Patent number: 4446502
    Abstract: An improved hermetically sealed glass encapsulated monolithic ceramic capacitor in which a metallurgical bond between the capacitor termination and the end cap of its lead is effected by means of brazing.
    Type: Grant
    Filed: June 14, 1982
    Date of Patent: May 1, 1984
    Assignee: U.S. Philips Corporation
    Inventors: Otmar H. Boser, Richard C. Sweet