Patents by Inventor Bruce D. Johanson

Bruce D. Johanson 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).

  • Long-pulse pulse power system for gas discharge laser
    Patent number: 7295591
    Abstract: A long pulse pulse power system for gas discharge lasers. The system includes a sustainer capacitor for accepting a charge from a high voltage pulse power source. A peaking capacitor with a capacitance value of less than half the sustainer capacitance provides the high voltage for the laser discharge.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: November 13, 2007
    Assignee: Cymer, Inc.
    Inventors: Thomas Hofmann, Bruce D. Johanson
  • Long-pulse pulse power system for gas discharge laser
    Patent number: 6782031
    Abstract: A long pulse power system for gas discharge lasers. The system includes a sustainer capacitor for accepting a charge from a high voltage pulse power source. A peaking capacitor with a capacitance value of less than half the sustainer capacitance provides the high voltage for the laser discharge.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: August 24, 2004
    Assignee: Cymer, Inc.
    Inventors: Thomas Hofmann, Bruce D. Johanson