Patents by Inventor Hoshi Tohru

Hoshi Tohru 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).

  • Multimedia information exchanging system and equipment therefor
    Patent number: 4955019
    Abstract: A multimedia information exchanging system in a digital exchange network that has an exchange system in which channels are selectively assigned for communication among a plurality of subscribers. This system has many pieces of subscriber line terminating equipment each of which is provided on the subscriber side of each subscriber line and which connects at least one terminal device to the subscriber line through subchannels.
    Type: Grant
    Filed: October 25, 1989
    Date of Patent: September 4, 1990
    Assignee: Hitachi, Ltd.
    Inventors: Noboru Mizuhara, Hoshi Tohru, Takashi Morita