Patents by Inventor Carla A. Viands

Carla A. Viands 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).

  • Electron density storage device using a STM
    Patent number: 5216661
    Abstract: The invention is a method and device providing very high density information storage on an organomellic DCNQI charge transfer data storage medium. The medium is switched from one state to another through the application of an electric field to the medium by the probe tip of a scanning tunneling microscope resulting in an observable change in the electron density of the surface of the medium.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: June 1, 1993
    Assignee: The Johns Hopkins University
    Inventors: Richard S. Potember, Shoji Yamaguchi, Carla A. Viands
  • Electron density storage device and method using STM
    Patent number: 5161149
    Abstract: The invention is a method and device providing very high density information storage on an organometallic charge transfer data storage medium. The medium is switched from one state to another through the application of an electric field to the medium by the probe tip of a scanning tunneling microscope resulting in an observable change in the electron density of the surface of the medium. A STM tip is used to write, read and erase data via the organometallic charge transfer medium (e.g. TCNQ, or derivatives thereof).
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: November 3, 1992
    Assignee: The Johns Hopkins University
    Inventors: Richard S. Potember, Shoji Yamaguchi, Carla A. Viands