Patents by Inventor Joonas GOVENIUS

Joonas GOVENIUS 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).

  • Self-resetting single flux-quantum microwave photodetector
    Patent number: 11982700
    Abstract: The disclosure relates to a quantum detector configured to receive a microwave signal from a microwave source. The quantum detector comprises a main element formed by a main Josephson junction and a Josephson transmission line which is coupled to the main element for outputting a measurement signal. The Josephson transmission line comprises at least a first set of JTL elements and a second set of JTL elements. The capacitively shunted Josephson junction in each JTL element in the first set is weakly damped, and the JTL element in the second set are more strongly damped than the JTL elements in the first set.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: May 14, 2024
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Joonas Govenius, Juha Hassel
  • CRYOGENIC WAVEFORM SOURCE
    Publication number: 20230231631
    Abstract: A method for providing an electric waveform at a cryogenic temperatures includes providing an optical signal, which comprises an optical waveform, guiding the optical signal into a cryogenic chamber, and converting the optical waveform of the optical signal into an electric waveform inside the cryogenic chamber.
    Type: Application
    Filed: June 16, 2021
    Publication date: July 20, 2023
    Applicant: Teknologian tutkimuskeskus VTT Oy
    Inventors: Antti KEMPPINEN, Jaani NISSILÄ, Jukka VIHERIÄLÄ, Joonas GOVENIUS
  • SELF-RESETTING SINGLE FLUX-QUANTUM MICROWAVE PHOTODETECTOR
    Publication number: 20230052753
    Abstract: The disclosure relates to a quantum detector configured to receive a microwave signal from a microwave source. The quantum detector comprises a main element formed by a main Josephson junction and a Josephson transmission line which is coupled to the main element for outputting a measurement signal. The Josephson transmission line comprises at least a first set of JTL elements and a second set of JTL elements. The capacitively shunted Josephson junction in each JTL element in the first set is weakly damped, and the JTL element in the second set are more strongly damped than the JTL elements in the first set.
    Type: Application
    Filed: January 25, 2021
    Publication date: February 16, 2023
    Inventors: Joonas GOVENIUS, Juha HASSEL