Patents by Inventor Akihiko Sakuramoto

Akihiko Sakuramoto 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).

  • Multi-drop type bus line system
    Patent number: 4882554
    Abstract: A multi-drop type bus line system having a plurality of terminals respectively connected to a common bus line, in which each terminal has a connector interconnecting with the other terminals and the connectors at the respective terminals are interconnected by means of a connection cable. Each connector is provided with a switch which is actuated each time the connection cable is coupled to the connector of the terminal, whereby when the connection cable is coupled to the connector, the switch releases an impedance matching resistor connected between predetermined terminal pins of the connector. Impedance matching is improved and standing waves are reduced.
    Type: Grant
    Filed: May 24, 1988
    Date of Patent: November 21, 1989
    Assignees: Sony Corp., SMK Co., Ltd.
    Inventors: Yukio Akaba, Akihiko Sakuramoto
  • Electrical connector socket
    Patent number: D315545
    Type: Grant
    Filed: November 29, 1988
    Date of Patent: March 19, 1991
    Assignees: Sony Corporation, SNK Corporation
    Inventors: Yukio Akaba, Akihiko Sakuramoto