Patents by Inventor Michitaka Maruyama

Michitaka Maruyama 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).

  • Superconducting circuit
    Publication number: 20070049097
    Abstract: A circuit includes a latch circuit including a Josephson junction and configured to perform a latch operation based on a hysteresis characteristic in response to a single flux quantum, a load circuit including load inductance and load resistance and coupled to an output of the latch circuit, and a reset circuit provided between the output of the latch circuit and the load circuit and configured to reset the latch circuit a predetermined time after the latch operation by the latch circuit, wherein the Josephson junction is driven by a direct current.
    Type: Application
    Filed: September 21, 2006
    Publication date: March 1, 2007
    Applicants: FUJITSU LIMITED, INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER, THE JURIDICAL FOUNDATION
    Inventors: Satoru Hirano, Hideo Suzuki, Keiichi Tanabe, Akira Yoshida, Tsunehiro Hato, Michitaka Maruyama
  • Superconducting latch driver circuit generating sufficient output voltage and pulse-width
    Patent number: 7129870
    Abstract: A circuit includes a latch circuit including a Josephson junction and configured to perform a latch operation based on a hysteresis characteristic in response to a single flux quantum, a load circuit including load inductance and load resistance and coupled to an output of the latch circuit, and a reset circuit provided between the output of the latch circuit and the load circuit and configured to reset the latch circuit a predetermined time after the latch operation by the latch circuit, wherein the Josephson junction is driven by a direct current.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 31, 2006
    Assignees: Fujitsu Limited, International SuperConductivity Technology Center, The Juridical Foundation
    Inventors: Satoru Hirano, Hideo Suzuki, Keiichi Tanabe, Akira Yoshida, Tsunehiro Hato, Michitaka Maruyama
  • Superconducting circuit
    Publication number: 20050078022
    Abstract: A circuit includes a latch circuit including a Josephson junction and configured to perform a latch operation based on a hysteresis characteristic in response to a single flux quantum, a load circuit including load inductance and load resistance and coupled to an output of the latch circuit, and a reset circuit provided between the output of the latch circuit and the load circuit and configured to reset the latch circuit a predetermined time after the latch operation by the latch circuit, wherein the Josephson junction is driven by a direct current.
    Type: Application
    Filed: August 27, 2004
    Publication date: April 14, 2005
    Applicants: FUJITSU LIMITED, INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER, THE JURIDICAL FOUNDATION
    Inventors: Satoru Hirano, Hideo Suzuki, Keiichi Tanabe, Akira Yoshida, Tsunehiro Hato, Michitaka Maruyama