Patents by Inventor Sakae Hokkanji

Sakae Hokkanji 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: 4089483
    Abstract: A film feeding device for a camera including a rotatable center shaft member having a protrudent clutch pin, the center shaft being movable alone in the direction of its axis; a rotatable film feeding sprocket which has a slot to allow the protrudent pin to engage therewith and which thus moves together with the center shaft member when the center shaft rotates; a drive device which is provided with a clutch groove to allow the protrudent pin to engage with and disengage from the clutch groove, the drive device being arranged to rotate in response to a film winding operation. When the center shaft shifts to one side defined by the slot, the protrudent clutch pin comes to engage with the clutch groove to cause the sprocket to rotate in response to the film winding operation. When the center shaft shifts to the other side, the protrudent clutch pin is disengaged from the clutch groove to permit free rotation of the sprocket.
    Type: Grant
    Filed: January 25, 1977
    Date of Patent: May 16, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Sakae Hokkanji, Masami Shimizu, Akio Sunouchi, Yukio Iura, Masayoshi Yamamichi, Yoshiaki Watanabe