Patents by Inventor Ken Wakatsuki

Ken Wakatsuki 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).

  • Toner supply mechanism having locking means for locking a shutter member and a toner supply container having projections for releasable locking a hopper shutter member
    Patent number: 6014536
    Abstract: A toner supply mechanism includes a toner storing portion for storing toner, a receiving opening for receiving toner to be supplied to the toner storing portion, a shutter member for opening and closing the receiving opening, and a lock, provided at each longitudinal end of the receiving opening, for locking the shutter member. The lock releases the shutter member by setting the toner supply container.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: January 11, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Ban, Saijiro Endo, Kyota Miyazaki, Ken Wakatsuki
  • Toner supply container and a toner supply mechanism having a toner supply container, to be set to a hopper opening or to a supply portion having a hopper opening
    Patent number: 5974286
    Abstract: A toner supply container to be set to a supply portion having a hopper opening for a toner hopper, a hopper shutter member for opening and closing the hopper opening, and a lock for locking the hopper shutter member. The container includes a toner container body for accommodating toner and having a supply opening for supplying the toner, a seal member for sealing the supply opening, a releasing projection for releasing locking of a hopper shutter member by the lock, in response to setting operation to the supply portion; and an interrelating device for interrelating movement of the hopper shutter member and the seal member when the container is set to the supply portion.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: October 26, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Ban, Kyota Miyazaki, Ken Wakatsuki
  • Toner cartridge
    Patent number: D374456
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: October 8, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ken Wakatsuki, Masaki Takahashi, Hiroki Umeda
  • Toner container for copying machine
    Patent number: D404063
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: January 12, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Komatsu, Ken Wakatsuki