Patents by Inventor Yoji SHIRASAWA

Yoji SHIRASAWA 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).

  • Torque generation system, attitude control system for spacecraft, and relative position and velocity control system for spacecraft
    Patent number: 10577132
    Abstract: A torque generation system includes: a plurality of solar array panels and/or solar array panel divisions; and a torque controller configured to control an electricity generation ratio of each of the plurality of solar array panels and/or solar array panel divisions to generate torque.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: March 3, 2020
    Assignee: Japan Aerospace Exploration Agency
    Inventors: Osamu Mori, Junichiro Kawaguchi, Yoji Shirasawa, Toshihiro Chujo, Kosuke Akatsuka
  • TORQUE GENERATION SYSTEM, ATTITUDE CONTROL SYSTEM FOR SPACECRAFT, AND RELATIVE POSITION AND VELOCITY CONTROL SYSTEM FOR SPACECRAFT
    Publication number: 20180290769
    Abstract: A torque generation system includes: a plurality of solar array panels and/or solar array panel divisions; and a torque controller configured to control an electricity generation ratio of each of the plurality of solar array panels and/or solar array panel divisions to generate torque.
    Type: Application
    Filed: May 30, 2018
    Publication date: October 11, 2018
    Applicant: Japan Aerospace Exploration Agency
    Inventors: Osamu MORI, Junichiro KAWAGUCHI, Yoji SHIRASAWA, Toshihiro CHUJO, Kosuke AKATSUKA
  • TORQUE GENERATION SYSTEM, ATTITUDE CONTROL SYSTEM FOR SPACECRAFT, AND RELATIVE POSITION AND VELOCITY CONTROL SYSTEM FOR SPACECRAFT
    Publication number: 20160376032
    Abstract: A torque generation system includes: a plurality of solar array panels and/or solar array panel divisions; and a torque controller configured to control an electricity generation ratio of each of the plurality of solar array panels and/or solar array panel divisions to generate torque.
    Type: Application
    Filed: May 10, 2016
    Publication date: December 29, 2016
    Applicant: Japan Aerospace Exploration Agency
    Inventors: Osamu MORI, Junichiro KAWAGUCHI, Yoji SHIRASAWA, Toshihiro CHUJO, Kosuke AKATSUKA