Patents Examined by Joan Penedegrass
  • Method an apparatus for discharging liquid by a gas bubble controlled by a moveable member to communicate with the atmosphere
    Patent number: 6270200
    Abstract: There is disclosed a liquid discharging method and apparatus in which a bubble is formed and grown in the liquid is communicated with atmosphere at an area of a discharge opening, and in which a movable member having a free end which guides the bubble toward the discharge opening while regulating growth of the bubble.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: August 7, 2001
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroyuki Ishinaga, Sadayuki Sugama, Toshio Kashino, Takeshi Okazaki, Aya Yoshihira, Kiyomitsu Kudo, Yoshie Asakawa