Patents by Inventor Peter K. Day

Peter K. Day 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).

  • Dispersion-engineered traveling wave kinetic inductance parametric amplifier
    Patent number: 8878626
    Abstract: A traveling wave kinetic inductance parametric amplifier comprises a superconducting transmission line and a dispersion control element. The transmission line can include periodic variations of its dimension along its length. The superconducting material can include a high normal state resistivity material. In some instances the high normal state resistivity material includes nitrogen and a metal selected from the group consisting of titanium, niobium and vanadium. The traveling wave kinetic inductance parametric amplifier is expected to exhibit a noise temperature below 100 mK/GHz.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: November 4, 2014
    Assignee: California Institute of Technology
    Inventors: Jonas Zmuidzinas, Peter K. Day
  • Low field electron paramagnetic resonance imaging with SQUID detection
    Patent number: 8179135
    Abstract: In one embodiment, a flux transformer with a gradiometer pickup coil is magnetically coupled to a SQUID, and a SQUID array amplifier comprising a plurality of SQUIDs, connected in series, is magnetically coupled to the output of the SQUID. Other embodiments are described and claimed.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: May 15, 2012
    Assignees: California Institute of Technology, The Regents of the University of California
    Inventors: Inseob Hahn, Peter K. Day, Konstantin I. Penanen, Byeong H. Eom, Mark S. Cohen
  • DISPERSION-ENGINEERED TRAVELING WAVE KINETIC INDUCTANCE PARAMETRIC AMPLIFIER
    Publication number: 20120098594
    Abstract: A traveling wave kinetic inductance parametric amplifier comprises a superconducting transmission line and a dispersion control element. The transmission line can include periodic variations of its dimension along its length. The superconducting material can include a high normal state resistivity material. In some instances the high normal state resistivity material includes nitrogen and a metal selected from the group consisting of titanium, niobium and vanadium. The traveling wave kinetic inductance parametric amplifier is expected to exhibit a noise temperature below 100 mK/GHz.
    Type: Application
    Filed: October 20, 2011
    Publication date: April 26, 2012
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Jonas ZMUIDZINAS, Peter K. DAY
  • LOW FIELD ELECTRON PARAMAGNETIC RESONANCE IMAGING WITH SQUID DETECTION
    Publication number: 20090295390
    Abstract: In one embodiment, a flux transformer with a gradiometer pickup coil is magnetically coupled to a SQUID, and a SQUID array amplifier comprising a plurality of SQUIDs, connected in series, is magnetically coupled to the output of the SQUID. Other embodiments are described and claimed.
    Type: Application
    Filed: January 26, 2009
    Publication date: December 3, 2009
    Applicant: California Institute of Technology
    Inventors: Inseob Hahn, Peter K Day, Konstantin I Penanen, Byeong H. Eom, Mark S Cohen