Patents by Inventor Hirohisa Nagata

Hirohisa Nagata 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).

  • Method for reducing low frequency noise of transistor
    Patent number: 8048731
    Abstract: A method for reducing low frequency noise of a transistor operable at cryogenic temperatures includes a first step in which the transistor is illuminated with a light in a state that the transistor is activated and flowed current by supplying a power at a predetermined temperature, and a second step in which the transistor is operated at the predetermined temperature after the illumination of the light.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: November 1, 2011
    Assignees: National Institute of Information and Communications Technology, National Institutes of Natural Sciences
    Inventors: Mikio Fujiwara, Masahide Sasaki, Hiroshi Matsuo, Hirohisa Nagata
  • METHOD FOR REDUCING LOW FREQUENCY NOISE OF TRANSISTOR
    Publication number: 20100237934
    Abstract: A method for reducing low frequency noise of a transistor operable at cryogenic temperatures includes a first step in which the transistor is illuminated with a light in a state that the transistor is activated and flowed current by supplying a power at a predetermined temperature, and a second step in which the transistor is operated at the predetermined temperature after the illumination of the light.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 23, 2010
    Inventors: Mikio Fujiwara, Masahide Sasaki, Hiroshi Matsuo, Hirohisa Nagata