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:
Nov. 20, 2007
Filed:
Feb. 22, 2005
Toshiaki Fukunaga, Kanagawa, JP;
Yasuhisa Kaneko, Kanagawa, JP;
Toshiaki Fukunaga, Kanagawa, JP;
Yasuhisa Kaneko, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
The liquid ejection head ejects droplets by causing an electrostatic force to act on a solution in which charged particles are dispersed. The head includes a solution guide mounted at a position corresponding to a through-hole on a first surface of an insulating head substrate on a through-hole substrate side and gradually narrowing toward a tip end portion, the tip end portion thereof passing through and protruding from the through-hole, a control electrode provided on the first surface of the head substrate so that a center thereof approximately coincides with the solution guide, a electrode drawing portion connected to the control electrode and passing through the head substrate and a wiring portion provided on a second surface being a back side of the head substrate and connecting to each other the electrode drawing portion and means for applying a voltage to the control electrode.