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:
May. 11, 2010
Filed:
Jun. 20, 2007
Sho Onozawa, Kanagawa-ken, JP;
Sho Onozawa, Kanagawa-ken, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
The mist ejection head has: a nozzle plate in which a nozzle hole for ejecting liquid is formed; a liquid chamber connected to the nozzle hole; an ultrasonic wave generating device which applies an ultrasonic wave to the liquid in the liquid chamber; and a reflective wall which reflects the ultrasonic wave applied to the liquid, wherein: the reflective wall is disposed so as to oppose the nozzle plate and has an axially symmetrical shape comprising a portion of a parabolic surface, the portion including an apex of the parabolic surface and being on an apex side with respect to a focal point of the parabolic surface; an axis of the parabolic surface passes through the nozzle hole; and the focal point of the parabolic surface is positioned in a vicinity of the nozzle hole.