Patents by Inventor Victor S. Dolat

Victor S. Dolat 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).

  • Surface acoustic wave devices and method of manufacture thereof
    Patent number: 4672254
    Abstract: A phase and amplitude compensated surface acoustic wave (SAW) structure is described in which computer controlled compensation is achieved by laser chemical etching of selective portions of a compound chemical film deposited on the surface of a piezoelectric SAW substrate in the path of propagation. The compound film comprises a layer of amplitude attenuating cermet material formed on the substrate and a phase compensating layer of molybdenum formed over the cermet material and in contact with the substrate surface.
    Type: Grant
    Filed: October 11, 1985
    Date of Patent: June 9, 1987
    Assignee: Massachusetts Institute of Technology
    Inventors: Victor S. Dolat, Daniel J. Ehrlich, Jeffrey Y. Tsao