Patents by Inventor Chandra V. Desphandey

Chandra V. Desphandey 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).

  • Process for making diamond, and doped diamond films at low temperature
    Patent number: 4961958
    Abstract: A process and apparatus that may be used for the production of diamond and doped diamond films at high rates by activated reactive vapor deposition. Carbon is evaporated in a vacuum chamber in the presence of atomic hydrogen containing plasma to form diamond precursors which then deposit on a substrate located within the vacuum chamber. The substrate temperature is maintained at between about 20.degree.-600.degree. C.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: October 9, 1990
    Assignee: The Regents of the Univ. of Calif.
    Inventors: Chandra V. Desphandey, Rointan F. Bunshah, Hans J. Doerr
  • Process for making diamond, doped diamond, diamond-cubic boron nitride composite films
    Patent number: 4816291
    Abstract: A process and apparatus that may be used for the production of diamond and doped diamond films at high rates by activated reactive vapor deposition. Carbon is evaporated in a vacuum chamber in the presence of atomic hydrogen containing plasma to form diamond precursors which then deposit on a substrate located within the vacuum chamber.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: March 28, 1989
    Assignee: The Regents of the University of California
    Inventors: Chandra V. Desphandey, Rointan F. Bunshah, Hans J. Doerr