Patents by Inventor Masako Shinmura

Masako Shinmura 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 D channel congestion control method
    Patent number: 5283788
    Abstract: An ISDN D channel congestion control method has at least either a digital subscriber line circuit common (DLCC) or a signaling controller (SGC) notify either an SGC or a packet subscriber system (PSS) of a D channel congestion according to a predetermined protocol, thereby controlling the congestion of a communication controlling apparatus.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: February 1, 1994
    Assignee: Fujitsu Limited
    Inventors: Sumie Morita, Takashi Hatano, Masako Shinmura, Hisashi Koga, Tsutomu Shiomitsu