Patents by Inventor Yumi Koide

Yumi Koide 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).

  • Data communication apparatus permitting confidential communication
    Patent number: 5258998
    Abstract: A data communication apparatus, such as a facsimile machine, in which the data of a page is transmitted in plural blocks, and the sending unit designates the blocks to be released as output. In this manner particular data can be sent to a particular receiving unit as secret information.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: November 2, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yumi Koide