Patents by Inventor Tamiko Kato

Tamiko Kato 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).

  • ISDN Terminal equipment
    Patent number: 5365517
    Abstract: ISDN (Integrated Services Digital Network) terminal equipment connected to an ISDN basic rate interface and capable of enhancing efficient communication. The terminal equipment reoriginates a call as soon as an idle channel occurs. This reduces the waiting time up to call reorigination and enhances efficient communication.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: November 15, 1994
    Assignee: Ricoh Company, Ltd.
    Inventors: Tamiko Kato, Shinichiro Ozeki, Takanori Fujii