Patents by Inventor Sigeo Kurotaka

Sigeo Kurotaka 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).

  • Developer container for dry-process development
    Patent number: 4696418
    Abstract: A toner container for use with a developing unit of an electrostatographic copier or the like which is rotated to discharge a toner thereoutof is disclosed. A toner agitating member is accommodated in the container in a freely movable manner and shaped and dimensioned to be prevented from slipping out of the container through a slot, or toner outlet, of the container.
    Type: Grant
    Filed: August 8, 1985
    Date of Patent: September 29, 1987
    Assignee: Ricoh Company, Ltd.
    Inventors: Sigeo Kurotaka, Moriyosi Tukano