Patents by Inventor Ashok Ajoy

Ashok Ajoy 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).

  • Patent number: 11531076
    Abstract: A system can include: a superconducting or permanent magnet; a high field portion corresponding to the superconducting or permanent magnet, wherein the high field has a range of 0.1-20 T; a low field portion positioned outside of the superconducting or permanent magnet, wherein the low field has a range of 0.01 nT-100 mT; a shuttling mechanism configured to deliver a sample between the low field portion and the high field portion; and a polarization sub-assembly configured to hyperpolarize the sample while the sample is within the low field portion. A device can be configured to cause nuclear spin hyperpolarization in diamond particles such that the hyperpolarization is transferable to at least one of an external liquid or an external solid.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: December 20, 2022
    Assignee: The Regents of the University of California
    Inventors: Ashok Ajoy, Emanuel Druga, Alexis Morabe, Kristina Song Liu, Alexander Pines, Raffi Nazaryan
  • Publication number: 20210364583
    Abstract: A system can include: a superconducting or permanent magnet; a high field portion corresponding to the superconducting or permanent magnet, wherein the high field has a range of 0.1-20 T; a low field portion positioned outside of the superconducting or permanent magnet, wherein the low field has a range of 0.01 nT-100 mT; a shuttling mechanism configured to deliver a sample between the low field portion and the high field portion; and a polarization sub-assembly configured to hyperpolarize the sample while the sample is within the low field portion. A device can be configured to cause nuclear spin hyperpolarization in diamond particles such that the hyperpolarization is transferable to at least one of an external liquid or an external solid.
    Type: Application
    Filed: November 1, 2018
    Publication date: November 25, 2021
    Inventors: ASHOK AJOY, EMMANUEL DRUGA, ALEXIS MORABE, KRISTIN LIU, ALEXANDER PINES, RAFFI NAZARYAN
  • Publication number: 20210221691
    Abstract: A method of hyperpolarizing diamond particles includes applying a laser to a sample of the diamond particles, irradiating the diamond particles with a sweeping microwave to cause diamond polarization, shuttling the diamond particles through a magnetic field to detect 13C nuclei in the diamond particles, and relaying the diamond polarization to nuclear spins to one of a surrounding solid or fluid.
    Type: Application
    Filed: November 1, 2018
    Publication date: July 22, 2021
    Inventors: ALEXANDER PINES, ASHOK AJOY, RAFFI NAZARYAN, XUDONG LV, CARLOS MERILES
  • Publication number: 20170138735
    Abstract: An n-NV-based gyroscope is provided that includes a diamond structure implanted with a plurality of NV centers, whose nuclear spins form a spin gyroscope. A number of radio-frequency (rf) coils and microwave (?w) co-planar waveguides are fabricated on the diamond structure to provide a sensitive and stable three-axis gyroscope in the solid state while achieving gyroscopic sensitivity by exploiting the coherence time of the 14N nuclear spin associated with the NV centers in the diamond structure combined with the efficient optical polarization and measurement of electronic spin.
    Type: Application
    Filed: July 25, 2016
    Publication date: May 18, 2017
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Paola Cappellaro, Ashok Ajoy
  • Patent number: 9417068
    Abstract: An n-NV-based gyroscope is provided that includes a diamond structure implanted with a plurality of NV centers, whose nuclear spins form a spin gyroscope. A number of radio-frequency (rf) coils and microwave (?w) co-planar waveguides are fabricated on the diamond structure to provide a sensitive and stable three-axis gyroscope in the solid state while achieving gyroscopic sensitivity by exploiting the coherence time of the 14N nuclear spin associated with the NV centers in the diamond structure combined with the efficient optical polarization and measurement of electronic spin.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: August 16, 2016
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Paola Cappellaro, Ashok Ajoy
  • Publication number: 20140327439
    Abstract: An n-NV-based gyroscope is provided that includes a diamond structure implanted with a plurality of NV centers, whose nuclear spins form a spin gyroscope. A number of radio-frequency (rf) coils and microwave (?w) co-planar waveguides are fabricated on the diamond structure to provide a sensitive and stable three-axis gyroscope in the solid state while achieving gyroscopic sensitivity by exploiting the coherence time of the 14N nuclear spin associated with the NV centers in the diamond structure combined with the efficient optical polarization and measurement of electronic spin.
    Type: Application
    Filed: May 1, 2013
    Publication date: November 6, 2014
    Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: Paola Cappellaro, Ashok Ajoy