Patents by Inventor Randolph E. Longshore

Randolph E. Longshore 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).

  • Method of manufacture of photodiode
    Patent number: 4302531
    Abstract: A process is described in which planar photodiodes are formed by diffusing lead into p-type Pb.sub.0.8 Sn.sub.0.2 Te single crystal material.
    Type: Grant
    Filed: April 16, 1979
    Date of Patent: November 24, 1981
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: John T. Cox, Michael B. Garber, Marilyn A. Jasper, Randolph E. Longshore
  • Planar indium antimonide diode array and method of manufacture
    Patent number: 4286277
    Abstract: An improved diode array and method of manufacture is provided by the diffon of cadmium from an indium-cadmium alloy through a silicon diode mask into bulk indium-antimonide to form a planar structure.
    Type: Grant
    Filed: November 22, 1977
    Date of Patent: August 25, 1981
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Randolph E. Longshore
  • Photodiode and method of manufacture
    Patent number: 4170781
    Abstract: A process is described in which planar photodiodes are formed by diffusing lead into p-type Pb.sub.0.8 Sn.sub.0.2 Te single crystal material.
    Type: Grant
    Filed: April 6, 1978
    Date of Patent: October 9, 1979
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: John T. Cox, Michael B. Garber, Marilyn A. Jasper, Randolph E. Longshore
  • Method for producing a scabrous photosensitive surface
    Patent number: 4160045
    Abstract: A layer of indium is deposited as small islands on a photosensitive material. The islands and the material not covered by the islands are bombarded with ions to cause sputtering of the islands and the material. When the islands have been sputtered away, the material has a surface consisting of cones and pyramids. Such a surface is more efficient at absorbing photons than is a smooth surface.
    Type: Grant
    Filed: July 25, 1978
    Date of Patent: July 3, 1979
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Randolph E. Longshore