Patents by Inventor Douglas J. Scalapino

Douglas J. Scalapino 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).

  • Tunable superconducting resonator and methods of tuning thereof
    Patent number: 8030925
    Abstract: A method of tuning a high temperature superconductor (HTS) resonator includes the steps of providing a HTS inductor and a HTS capacitor, the HTS capacitor being electrically connected to the HTS inductor. A tuning body is provided adjacent to the HTS inductor and the HTS capacitor. The relative position of the tuning body with respect to the HTS inductor and the HTS capacitor is altered so as to tune the resonator. A tunable resonant circuit is provided that includes a substrate having a planar surface. At least one resonator formed from HTS material is disposed on the substrate, the resonator having one or more turns that when combined, turn through greater than 360°.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: October 4, 2011
    Assignee: Superconductor Technologies, Inc.
    Inventors: Robert B. Hammond, Jonathan Z. Sun, Douglas J. Scalapino, Timothy W. James, Lincoln C. Bourne
  • Tunable superconducting resonator and methods of tuning thereof
    Patent number: 7190165
    Abstract: A method of tuning a high temperature superconductor (HTS) resonator includes the steps of providing a HTS inductor and a HTS capacitor, the HTS capacitor being electrically connected to the HTS inductor. A tuning body is provided adjacent to the HTS inductor and the HTS capacitor. The relative position of the tuning body with respect to the HTS inductor and the HTS capacitor is altered so as to tune the resonator. A tunable resonant circuit is provided that includes a substrate having a planar surface. At least one resonator formed from HTS material is disposed on the substrate, the resonator having one or more turns that when combined, turn through greater than 360°.
    Type: Grant
    Filed: April 12, 2004
    Date of Patent: March 13, 2007
    Assignee: Superconductor Technologies, Inc.
    Inventors: Robert B Hammond, Jonathan Z. Sun, Douglas J. Scalapino, Timothy W. James, Lincoln C. Bourne
  • Tunable superconducting resonator and methods of tuning thereof
    Patent number: 6727702
    Abstract: A method of tuning a high temperature superconductor (HTS) resonator includes the steps of providing a HTS inductor and a HTS capacitor, the HTS capacitor being electrically connected to the HTS inductor. A tuning body is provided adjacent to the HTS inductor and the HTS capacitor. The relative position of the tuning body with respect to the HTS inductor and the HTS capacitor is altered so as to tune the resonator. A tunable resonant circuit is provided that includes a substrate having a planar surface. At least one resonator formed from HTS material is disposed on the substrate, the resonator having one or more turns that when combined, turn through greater than 360°.
    Type: Grant
    Filed: March 19, 2003
    Date of Patent: April 27, 2004
    Assignee: Superconductor Technologies, Inc.
    Inventors: Robert B Hammond, Jonathan Z. Sun, Douglas J. Scalapino, Timothy W. James, Lincoln C. Bourne
  • TUNABLE SUPERCONDUCTING RESONATOR AND METHODS OF TUNING THEREOF
    Publication number: 20040021466
    Abstract: A method of tuning a high temperature superconductor (HTS) resonator includes the steps of providing a HTS inductor and a HTS capacitor, the HTS capacitor being electrically connected to the HTS inductor. A tuning body is provided adjacent to the HTS inductor and the HTS capacitor. The relative position of the tuning body with respect to the HTS inductor and the HTS capacitor is altered so as to tune the resonator. A tunable resonant circuit is provided that includes a substrate having a planar surface. At least one resonator formed from HTS material is disposed on the substrate, the resonator having one or more turns that when combined, turn through greater than 360°.
    Type: Application
    Filed: March 19, 2003
    Publication date: February 5, 2004
    Applicant: Superconductor Technologies, Inc.
    Inventors: Robert B. Hammond, Jonathan Z. Sun, Douglas J. Scalapino, Timothy W. James, Lincoln C. Bourne
  • Superconducting devices having a variable conductivity device for introducing energy loss
    Patent number: 5328893
    Abstract: Active superconductive devices are formed having a variable conductive element in electromagnetic contact with a superconductor. In one embodiment, a variable ohmic conductive device, such as a photoconductor, is placed adjacent a superconductor. By varying the optical radiation on the photoconductor, the electromagnetic environment adjacent the superconductor is changed, resulting in changed electrical properties. The superconductor may be patterned as a reject filter, with a photoconductor forming a microwave switch. Alternatively, a delay line plus variable ohmic element forms a phase shifter.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: July 12, 1994
    Assignee: Superconductor Technologies, Inc.
    Inventors: Jonathan Z. Sun, Robert B. Hammond, Douglas J. Scalapino