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:
Jan. 01, 2013
Filed:
May. 18, 2009
Koichi Kitakami, Chigasaki, JP;
Koichi Kitakami, Chigasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention provides a liquid ejection method and a liquid ejection apparatus which enables small droplets each of diameter at most 10 μm to be stably ejected and which allows a sufficient number of droplets to be ejected per unit time. A heater is allowed to generate heat to eject a main droplet and a liquid column from an ejection port; the liquid column is to be separated into a plurality of sub-droplets. A relationship (L/L)≧0.9 is set for the length Lof the liquid column observed immediately after the liquid column has been separated from the main droplet and from a liquid in the ejection port and the length Lof the liquid column observed immediately before the liquid column is separated into the plurality of droplets.