Patents Assigned to Ryotaro Kamikawai
  • Superconducting logic circuit
    Patent number: 5151617
    Abstract: A superconducting logic circuit is configured by using two kinds of input-output type quantum flux parametrons (QFP), that is, a periodically excited input-output type QFP and an arbitrarily excited input-output type QFP. The periodically excited QFP is excited by periodically varying exciting magnetic flux to amplify a binary magnetic flux. The arbitrarily excited QFP is excited by magnetic flux output signals of upstream QFPs.
    Type: Grant
    Filed: March 6, 1991
    Date of Patent: September 29, 1992
    Assignees: Research Development Corporation of Japan, Ryotaro Kamikawai
    Inventors: Eiichi Goto, Willy Hioe, Mutsumi Hosoya, Ryotaro Kamikawai