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:
Aug. 14, 2007
Filed:
Sep. 16, 2005
Kazumi Hara, Suwa, JP;
Kazumi Hara, Suwa, JP;
Seiko Epson Corporation, , JP;
Abstract
There is provided a droplet ejection head that is small in size, provides high productivity, and is extremely reliable. The droplet ejection head of the present invention includes pressure generating chambers that are connected to nozzle apertures, an elastic membrane (i.e., a diaphragm) that constitutes a portion of the pressure generating chambers, piezoelectric elements that are placed on a surface of the elastic membrane on the opposite side from the pressure generating chambers, and cause pressure changes to be generated inside the pressure generating chambers, and drive IC (i.e., drive elements) that drive the piezoelectric elements. In this droplet ejection head, the drive IC are flip-chip bonded to terminals that are provided on the piezoelectric elements.