Patents by Inventor Darrin S. Richeson

Darrin S. Richeson 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).

  • CVD method for forming B.sub.i -containing oxide superconducting films
    Patent number: 5296460
    Abstract: Films of high T.sub.c Bi-Sr-Ca-Cu-O superconductor have been prepared by MOCVD using volatile metal organic precursors and water vapor. The metal organic precursors are volatized along with a bismuth source, such as Bi(C.sub.6 H.sub.5).sub.3, deposited on a heated substrate to form a film, and annealed.
    Type: Grant
    Filed: August 5, 1992
    Date of Patent: March 22, 1994
    Assignee: Northwestern University
    Inventors: Bruce W. Wessels, Tobin J. Marks, Darrin S. Richeson, Lauren M. Tonge, Jiming Zhang
  • Method of forming superconducting Tl-Ba-Ca-Cu-O films
    Patent number: 5185317
    Abstract: A method of forming a superconducting Tl-Ba-Ca-Cu-O film is disclosed, which comprises depositing a Ba-Ca-Cu-O film on a substrate by MOCVD, annealing the deposited film and heat-treating the annealed film in a closed circular vessel with TlBa.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x and cooling to form said superconducting film of TlO.sub.m Ba.sub.2 Ca.sub.n-1 Cu.sub.n O.sub.2n+2, wherein m=1,2 and n=1,2,3.
    Type: Grant
    Filed: April 25, 1991
    Date of Patent: February 9, 1993
    Assignee: Northwestern University
    Inventors: Bruce W. Wessels, Tobin J. Marks, Darrin S. Richeson, Lauren M. Tonge, Jiming Zhang