Patents by Inventor Katsumasa Miyatake

Katsumasa Miyatake 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).

  • Apparatus for determining attitude of artificial satellite
    Patent number: 6523786
    Abstract: An apparatus for determining the attitude of an artificial satellite by narrowing attitude candidates to a correct one in a short time. The apparatus has star sensors, a star catalog data base, star identification sections in each of which star images output from the star sensors are collated with a star catalog with respect to each star sensor to output a group of corresponding candidates, attitude computation sections for computing a value of an attitude candidate of the artificial satellite with respect to each corresponding candidate, an attitude updating section for updating the value of the attitude candidate on the basis of the star images output from the star sensor and the star catalog, and an attitude propagation section for computing the value of the attitude candidate at the present sampling time from the value of the attitude candidate at the preceding sampling time and the artificial satellite's angular velocity.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: February 25, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Shoji Yoshikawa, Katsuhiko Yamada, Haruhiko Shimoji, Masao Inoue, Norimasa Yoshida, Katsumasa Miyatake
  • Apparatus for determining attitude of artificaial satellite
    Publication number: 20020117585
    Abstract: An apparatus for determining the attitude of an artificial satellite arranged to narrow attitude candidates down to a correct one in a short time. The apparatus has star sensors, star catalog data bases, star identification sections in each of which star images output from the star sensors are collated with a star catalog with respect to each star sensor to output a group of corresponding candidates, attitude computation sections for computing a value of an attitude candidate of the artificial satellite with respect to each corresponding candidate, an attitude updating section for updating the value of the attitude candidate on the basis of the star images output from the star sensor and the star catalog, and an attitude propagation section for computing the value of the attitude candidate at the present sampling time from the value of the attitude candidate at the preceding sampling time and the artificial satellite body angular velocity.
    Type: Application
    Filed: June 14, 2001
    Publication date: August 29, 2002
    Inventors: Shoji Yoshikawa, Katsuhiko Yamada, Haruhiko Shimoji, Masao Inoue, Norimasa Yoshida, Katsumasa Miyatake