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:
Apr. 17, 2007
Filed:
May. 10, 2004
Toshiaki Fukunaga, Kanagawa, JP;
Isao Tsuruma, Kanagawa, JP;
Toshiaki Fukunaga, Kanagawa, JP;
Isao Tsuruma, Kanagawa, JP;
FujiFilm Corporation, Tokyo, JP;
Abstract
The liquid ejection head ejects a solution, in which charged particles are dispersed, toward a counter electrode. The head has a head substrate, a solution guide member formed on a surface of the head substrate so as to protrude and include a sharp-pointed portion having a sharply pointed tip end, with the sharp-pointed portion being which is formed by inclined surfaces and having a cross section that is reduced as a distance to the tip end is decreased, and a solution supply path having a solution outflow opening through which the solution flows out to the neighborhood of the sharp-pointed portion so as to form a solution flow around the inclined surfaces. The solution flow is formed around the tip end of the sharp-pointed portion in a direction going across the inclined surface and a part of the solution flow is guided to the tip end and is ejected as a droplet by means of an electrostatic force.