Patents by Inventor John B. Ramsey, Jr.

John B. Ramsey, Jr. 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).

  • Infrared detector and method of making same
    Patent number: 4439912
    Abstract: A mercury-cadmium-telluride (HgCdTe) epitaxial detector array is formed on a cadmium telluride (CdTe) substrate. Connecting leads to the detectors are a molybdenum layer covered by a gold-germanium layer. These leads have excellent matches for the thermal coefficients of expansion of the HgCdTe and CdTe and provide ohmic contacts such that the D* of the array is greater than that of arrays made by prior processes using known lead materials, and the noise level is reduced by a factor of approximately three.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: April 3, 1984
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: John H. Pollard, John B. Ramsey, Jr.
  • Retina for pyroelectric vidicon
    Patent number: 4246510
    Abstract: A retina is provided for a pyroelectric vidicon which is rugged, long liv and has increased resistance to contamination by normal environments encountered during testing and subsequent installation in the vidicon tube.
    Type: Grant
    Filed: January 7, 1976
    Date of Patent: January 20, 1981
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Wellman L. Clark, John T. Cox, Gerald Klauber, Ferdinand C. Petito, John B. Ramsey, Jr., John E. Waylonis
  • Method of manufacture and retina for pyroelectric vidicon
    Patent number: 4104771
    Abstract: A method of fabricating a retina and mounting it in a pyroelectric vidicon s provided wherein the pyroelectric material is polished, etched and coated with metal on one broad side and with a dielectric layer on the opposite (electron beam) side.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: August 8, 1978
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Wellman L. Clark, John T. Cox, Gerald Klauber, Ferdinand C. Petito, John B. Ramsey, Jr., John E. Waylonis