The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2005
Filed:
Oct. 18, 2004
Masahiko Kubota, Tokyo, JP;
Hiroshi Sugitani, Tokyo, JP;
Masanori Takenouchi, Kanagawa-ken, JP;
Masami Ikeda, Tokyo, JP;
Kiyomitsu Kudo, Kanagawa-ken, JP;
Ryoji Inoue, Kanagawa-ken, JP;
Takashi Saito, Kanagawa-ken, JP;
Masahiko Kubota, Tokyo, JP;
Hiroshi Sugitani, Tokyo, JP;
Masanori Takenouchi, Kanagawa-ken, JP;
Masami Ikeda, Tokyo, JP;
Kiyomitsu Kudo, Kanagawa-ken, JP;
Ryoji Inoue, Kanagawa-ken, JP;
Takashi Saito, Kanagawa-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid discharging method for a liquid head discharge head. The head has discharge ports, liquid flow paths, bubble generating areas, bubble generating means, liquid supply ports connecting the flow paths with a common liquid supply chamber, and a movable member in the flow paths supported with a minute gap to the supply ports. The area of the movable member surrounded at least by its free end and both sides continued therefrom is larger than the opening area of the supply ports. The method includes the step of setting a period for the movable member to substantially close the opening area during the period from the application of a driving voltage to the bubble generating means to the substantial termination of isotropical growth of the entire bubble by the bubble generating means. Growth of the bubble component in the direction opposite the discharge port can be suppressed, improving liquid refill.