Patents by Inventor Chuji Yamada

Chuji Yamada 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).

  • Eddy current braking system
    Patent number: 6039157
    Abstract: Magnets (20) are separated by ferromagnetic plates (21) from an inner surface of a brake drum (13) made of steel and secured to a rotational shaft (4). When the rotating brake drum (13) crosses magnetic flux generated by the magnets (20), a braking force caused by eddy currents is produced in the brake drum (13). An annular body (41) formed of a good conductor such as copper is fastened adjacent to at least one side surface of the brake drum (13) in a position axially spaced from the plates (21).
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: March 21, 2000
    Assignee: Isuzu Motors Limited
    Inventors: Chuji Yamada, Shin Kobayashi, Makoto Ogawa, Tohru Kuwahara, Eiji Okumura
  • Clutch disconnection/connection device
    Patent number: 5954176
    Abstract: The clutch disconnection/connection device of the present invention includes manual disconnection/connection devices for manually disconnecting/connecting a clutch by operation of a clutch pedal, and automatic disconnection/connection devices for automatically disconnecting/connecting the clutch by controllably supplying air pressure to or discharging the air pressure from a clutch booster.
    Type: Grant
    Filed: November 11, 1997
    Date of Patent: September 21, 1999
    Assignee: Isuzu Motors Limited
    Inventors: Masaki Ishihara, Yasushi Yamamoto, Chuji Yamada, Nobuyuki Iwao