Patents by Inventor Fumiho Takahashi

Fumiho Takahashi 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).

  • Spacecraft attitude sensor having an optical apparatus for increasing applications thereof
    Patent number: 5337241
    Abstract: A spacecraft attitude sensor which determines roll/pitch angles of a spacecraft, is disclosed. Two light ray detectors are provided in a manner to be canted by a predetermined angle with each other. Each of the two light ray detectors defines a "field of view" light beam channel. A scan mirror is arranged to reciprocally rotate, about a pitch axis of the spacecraft, between two predetermined angles. The scan mirror is positioned in front of the two light ray detectors so as to swing the field of view light beam channel. A prism is provided in front of the scan mirror and deviates the field of view light beam channel so as to allow the scan mirror to scan the Earth across limbs thereof. The provision of the prism is able to increase the application of the sensor.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: August 9, 1994
    Assignee: NEC Corporation
    Inventor: Fumiho Takahashi