Patents by Inventor Hideo Kamioka

Hideo Kamioka 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).

  • Hub for local area network with backup power supply system
    Patent number: 5990577
    Abstract: A hub for a local area network according to one embodiment of the present invention includes a plurality of communication ports connected to each of nodes in the network, through which a signal is transmitted among the nodes, a signal processing circuit having at least the functions of repeating the signal among the nodes and reshaping a waveform thereof, and a power supply circuit for supplying a dc current for driving the signal processing circuit.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: November 23, 1999
    Assignee: Allied Telesis K. K.
    Inventors: Hideo Kamioka, Minoru Dendou, Yoshimi Kohda, Koji Kobayashi