Patents by Inventor Shigehiro Nagano

Shigehiro Nagano 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).

  • NON-DEGENERATE POLARIZATION-ENTANGLED PHOTON PAIR GENERATION DEVICE AND NON-DEGENERATE POLARIZATION-ENTANGLED PHOTON PAIR GENERATION METHOD
    Publication number: 20110315901
    Abstract: A non-degenerate polarization-entangled photon pair generation device (1) that efficiently and easily generates non-degenerate polarization-entangled photon pairs includes: a quantum-entangled photon pair generator (2) including a single crystal in which periodically poled structures (3a, 3b) having different periods are formed; and a light radiating unit (4) for entering light into the quantum-entangled photon pair generator (2) such that the light passes through the periodically poled structure (3a) and then through the periodically poled structure (3b).
    Type: Application
    Filed: December 10, 2008
    Publication date: December 29, 2011
    Inventors: Keiichi Edamatsu, Ryosuke Shimizu, Shigehiro Nagano