Patents by Inventor Nobuyuki Takei

Nobuyuki Takei 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 simulator and quantum simulation method
    Patent number: 11567450
    Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modulator based on a two-dimensional pseudo random number pattern.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: January 31, 2023
    Assignees: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION
    Inventors: Hiroto Sakai, Kenji Ohmori, Taro Ando, Nobuyuki Takei, Haruyoshi Toyoda, Yoshiyuki Ohtake, Tomoko Hyodo, Yuu Takiguchi
  • QUANTUM SIMULATOR AND QUANTUM SIMULATION METHOD
    Publication number: 20210011430
    Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modulator based on a two-dimensional pseudo random number pattern.
    Type: Application
    Filed: September 23, 2020
    Publication date: January 14, 2021
    Applicants: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Hiroto Sakai, Kenji Ohmori, Taro Ando, Nobuyuki Takei, Haruyoshi Toyoda, Yoshiyuki Ohtake, Tomoko Hyodo, Yuu Takiguchi
  • Quantum simulator and quantum simulation method
    Patent number: 10824114
    Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modultor based on a two-dimensional pseudo random number pattern.
    Type: Grant
    Filed: April 4, 2018
    Date of Patent: November 3, 2020
    Assignees: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL SCIENCES
    Inventors: Hiroto Sakai, Kenji Ohmori, Taro Ando, Nobuyuki Takei, Haruyoshi Toyoda, Yoshiyuki Ohtake, Tomoko Hyodo, Yuu Takiguchi
  • QUANTUM SIMULATOR AND QUANTUM SIMULATION METHOD
    Publication number: 20180292786
    Abstract: A quantum simulator includes a pseudo speckle pattern generator, a main vacuum chamber, an atomic gas supply unit, a light beam generator, a photodetector, and an atom number detector. The pseudo speckle pattern generator generates a pseudo speckle pattern in the inside of the main vacuum chamber by light allowed to enter the inside of the main vacuum chamber through the second window. The pseudo speckle pattern generator includes a controller, a light source, a beam expander, a spatial light modulator, and a lens. The controller sets a modulation distribution of the spatial light modultor based on a two-dimensional pseudo random number pattern.
    Type: Application
    Filed: April 4, 2018
    Publication date: October 11, 2018
    Applicants: HAMAMATSU PHOTONICS K.K., INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATION NATIONAL INSTITUTES OF NATURAL SCIENCES
    Inventors: Hiroto SAKAI, Kenji OHMORI, Taro ANDO, Nobuyuki TAKEI, Haruyoshi TOYODA, Yoshiyuki OHTAKE, Tomoko HYODO, Yuu TAKIGUCHI
  • Method for providing a partial plating
    Patent number: 6268017
    Abstract: A method for providing a partial plating to a lead pin, comprising the steps of plating an entire surface of the lead pin; covering a first part of a plated surface of the lead pin by a gel member; and subjecting a second part of the plated surface of the lead pin, which extends out of the gel member, to a metal-coating removing agent, to remove a metal coating of the second part of the plated surface. The plating step may include providing a composite plating on the entire surface of the lead pin, and the subjecting step may include removing an uppermost metal layer of the composite plating by the metal-coating removing agent. The composite plating may include a nickel base layer and a gold uppermost layer deposited on the nickel base layer. The gel member may be formed from a non-oily clay or paper-mache for handcraft use.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: July 31, 2001
    Assignee: Fujitsu Takamisawa Component Limited
    Inventors: Masayuki Takeuchi, Katsumasa Yoshinari, Kazuyiki Futaki, Kouji Nishimura, Yoshinobu Miyanoo, Ryoji Arai, Nobuyuki Takei