Patents by Inventor Sigeyuki Chuugun

Sigeyuki Chuugun 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).

  • Ink container and ink container loading structure
    Patent number: 7407266
    Abstract: An image forming system includes a mounting portion in which an expendable provided with a memory in which distinguishment information representing whether the expendable is compatible is stored is removably installed. The distinguishment information stored in the memory of the expendable installed in the mounting portion is read out, and operation of a predetermined object is controlled on the basis of a control information according to the distinguishment information when the distinguishment information read out represents that the expendable is compatible.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: August 5, 2008
    Assignee: Riso Kagaku Corporation
    Inventors: Kaoru Kimura, Tomohiro Ogawa, Sigeyuki Chuugun