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:
Dec. 30, 2008
Filed:
May. 29, 2007
Sho Onozawa, Kanagawa-ken, JP;
Sho Onozawa, Kanagawa-ken, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
The liquid ejection head has: a surface acoustic wave propagation body in which a surface acoustic wave propagates; a nozzle orifice formed in the surface acoustic wave propagation body; a surface acoustic wave generation device which is provided on the surface acoustic wave propagation body around the nozzle orifice and excites the surface acoustic wave propagation body so that a surface acoustic wave is generated in the surface acoustic wave propagation body; a liquid supply device which supplies liquid to the nozzle orifice; and a guide member which is provided in a center of the nozzle orifice and has a tapered conical surface shape section that projects from an ejection surface of the nozzle orifice in an ejection direction, the liquid forming a curved liquid surface in the nozzle orifice in accordance with the tapered conical surface shape section due to surface tension, wherein the surface acoustic wave generates a capillary wave which propagates through the curved liquid surface in the nozzle orifice and which ejects the liquid from an apex section of the tapered conical surface shape section.