Patents by Inventor Yuri Polyako

Yuri Polyako 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).

  • Apparatus for measuring magnetic fields using a superconducting quantum interference device
    Patent number: 7365534
    Abstract: An instrument for measuring sub-pico Tesla magnetic fields using a superconducting quantum interference device (SQUID) inductively coupled to an unshielded gradiometer includes a filter for filtering magnetically-and electrically coupled radio frequency interference (RFI) away from the SQUID. This RFI is principally coupled to the SQUID via the unshielded gradiometer. The filter circuit includes a resistor-capacitor (RC) combination interconnected to first and second terminals so that it is parallel to both an input coil of the SQUID and the gradiometer. In addition, a shielding enclosure is used to electromagnetically shield the filter circuit from the SQUID, and a method is employed to increase the impedance between the input coil and the SQUID without diminishing the overall sensitivity of the instrument.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: April 29, 2008
    Assignee: CardioMag Imaging, Inc.
    Inventors: Nilesh Tralshawala, Alexander Bakharev, Yuri Polyako