Patents by Inventor James L. Knak

James L. Knak 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).

  • Channel electron multiplier phototube
    Patent number: 5097173
    Abstract: A channel electron multiplier phototube having a channel electron multiplier, a transparent faceplate, and an anode assembly. The channel electron multiplier includes an insulating body having a curved passageway extending therethrough. A photoemissive element, and a secondary emissive dynode material is on the walls of the passageway. The passageway, together with a photoemission film of the photocathode assembly and the anode of the anode assembly define an evacuated closed region. Preferably, the electron multiplier is a monolithic ceramic body.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: March 17, 1992
    Assignee: K and M Electronics, Inc.
    Inventors: Kenneth C. Schmidt, James L. Knak
  • Channel electron multiplier phototube
    Patent number: 4967115
    Abstract: A channel electron multiplier phototube having a channel electron multiplier, a photocathode assembly, and an anode assembly. The channel electron multiplier includes an insulating body having a curved passageway extending therethrough. A secondary emissive dynode material is on the walls of the passageway. The passageway, together with a photoemission film of the photocathode assembly and the anode of the anode assembly define an evacuated closed region. Preferably, the electron multiplier is a monolithic ceramic body.
    Type: Grant
    Filed: March 3, 1989
    Date of Patent: October 30, 1990
    Assignee: Kand M Electronics
    Inventors: Kenneth C. Schmidt, James L. Knak
  • Channel electron multiplier
    Patent number: 4757229
    Abstract: A channel electron multiplier having a semiconductive secondary emissive coating on the walls of said channel wherein said electron multiplier is a monolithic ceramic body and said channel therein preferably is three dimensional.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: July 12, 1988
    Assignee: K and M Electronics, Inc.
    Inventors: Kenneth C. Schmidt, James L. Knak