Patents by Inventor Mahn-soo Choi

Mahn-soo Choi 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).

  • Quantum-based force realization apparatus and force measurer using the same
    Patent number: 8033184
    Abstract: Disclosed herein are a force realization apparatus using a superconducting flux quantum, which is capable of generating force proportional to a flux quantum number by including a micron-sized superconducting annulus or superconducting quantum interference device in an ultra-sensitive cantilever, and a force measurer using the same.
    Type: Grant
    Filed: April 4, 2007
    Date of Patent: October 11, 2011
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Jae-hyuk Choi, Min-seok Kim, Yon-kyu Park, Kwang-cheol Lee, Mahn-soo Choi
  • QUANTUM-BASED FORCE REALIZATION APPARATUS AND FORCE MEASURER USING THE SAME
    Publication number: 20080047367
    Abstract: Disclosed herein are a force realization apparatus using a superconducting flux quantum, which is capable of generating force proportional to a flux quantum number by including a micron-sized superconducting annulus or superconducting quantum interference device in an ultra-sensitive cantilever, and a force measurer using the same. The quantum-based force realization apparatus includes: superconducting quantum trap means having a magnetic moment proportional to a flux quantum number; an ultra-sensitive cantilever which mounts therein the superconducting quantum trap means, has elasticity and is displaced by force generated by the superconducting quantum trap means located in a magnetic field gradient; and a magnetic field generator which applies a magnetic field to the superconducting quantum trap means.
    Type: Application
    Filed: April 4, 2007
    Publication date: February 28, 2008
    Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Jae-hyuk CHOI, Min-seok KIM, Yon-kyu PARK, Kwang-cheol LEE, Mahn-soo CHOI