Patents by Inventor Tsutau Shimamura

Tsutau Shimamura 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).

  • Driving mechanism for turning a photosensitive drum in an electrophotographic copying machine
    Patent number: 4671645
    Abstract: The present invention relates to a driving mechanism for turning a photosensitive drum in an electrophotographic copying machine, which is provided with a brake loading means to brake the turning force of the drum, and is characterized in that the brake loading means comprises a brake loading device for a power transmitting means arranged between the drum and a motor and a brake loading device for the drum.The former device applies a predetermined frictional braking force to the turning of at least one follower axis in the power transmitting means and eliminates adverse effects of backlashes existing between the motor and the follower axis with respect to the turning stability of the drum. The latter device eliminates adverse effects of backlashes existing between the follower axis and the drum as the same above.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: June 9, 1987
    Assignee: Dainippon Screen Mgf. Co., Ltd.
    Inventors: Masashi Saito, Tsutau Shimamura, Kojiro Henmi, Hiroki Kyushima