Patents by Inventor Tohru Nishida

Tohru Nishida 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).

  • Patent number: 5309190
    Abstract: A camera having a blurring movement correction mechanism comprising: an optical element disposed in an optical path of a photo-taking optical system so as to correct shift of an image formed on a film surface caused by movement of hands holding a camera body.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: May 3, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Junichi Shinohara, Yoshimi Ohno, Yoshio Serikawa, Tohru Nishida
  • Patent number: 5192964
    Abstract: A camera having blurring movement correction mechanism comprising: an optical element arranged to correct shift of an image formed on a film surface caused by movement of hands holding a camera body; an actuator for moving the optical element in a necessary direction for correcting the image shift; a detection unit for obtaining a blurring movement detection data by converting the movement of the camera body to an electric signal; a first memory unit for temporarily registering the detection data output from the detection unit; a calculation unit for calculating blurring movement correction data for correcting the image shift caused by movement of the camera body by actuating the optical element by the actuator; and a second memory unit for temporarily registering data of calculation.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: March 9, 1993
    Assignee: Ricoh Company, Ltd.
    Inventors: Junichi Shinohara, Yoshimi Ohno, Yoshio Serikawa, Tohru Nishida
  • Patent number: 4835558
    Abstract: A position control device which comprises a ratch wheel adapted to rotate in interlock with motion of an object to be positioned, a rotation detecting unit adapted to detect an amount of rotation of the ratch wheel, a combination solenoid provided with a pawl and adapted to be driven in a direction of bringing the pawl into engagement with the ratch wheel and in a direction of separating the pawl from the ratch wheel, and a combination solenoid control unit adapted to actuate the aforementioned combination solenoid in such a manner as to bring the pawl into engagement with the ratch wheel to set the object at a prescribed position when the aforementioned rotation detecting unit detects that the amount of the rotation of the ratch wheel has reached a prescribed level.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: May 30, 1989
    Assignee: Ricoh Company, Ltd.
    Inventors: Kunihiko Araki, Mikio Kobayashi, Hiroshi Terui, Tohru Nishida