Patents by Inventor Kazuyoshi Nagasawa

Kazuyoshi Nagasawa 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).

  • Local area network hub with distributed communication ports and magnetically attachable battery box
    Patent number: 6356952
    Abstract: A computer hub includes a hub body and a battery box, the hub body having a plurality of connection ports at a plurality of peripheral sides thereof for the connection of signal lines from computers/servers to form a local area network, contact terminals at a bottom side wall thereof for receiving power supply from the battery box, and magnetic means for securing the hub body to the battery box or metal support means, the battery box having power terminals power supply output, and magnetic means for attracting the magnetic means to hold down the hub body, enabling the contact terminals of the hub body to be maintained in contact with the power terminals of the battery box.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: March 12, 2002
    Assignee: Accton Technology Corporation
    Inventor: Kazuyoshi Nagasawa
  • Hub
    Patent number: D421964
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: March 28, 2000
    Assignee: Accton Technology Corporation
    Inventors: Kazuyoshi Nagasawa, Jakashi Ashitomi
  • Usb hub
    Patent number: D425866
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: May 30, 2000
    Assignee: Accton Technology Corporation
    Inventors: Kazuyoshi Nagasawa, Takashi Ashitomi