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. 31, 2010
Filed:
Jul. 05, 2007
Kanji Nagashima, Kanagawa-ken, JP;
Kanji Nagashima, Kanagawa-ken, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
A liquid ejection head which forms an image, has: a nozzle from which liquid is ejected in a combination ejection direction and which includes a first nozzle region and a second nozzle region demarcated by a partition; a pressure chamber unit which includes a first pressure chamber connected to the first nozzle region and a second pressure chamber connected to the second nozzle region, the first pressure chamber and the second chamber being demarcated by the partition; and a single piezoelectric element which vibrates the first pressure chamber at a first resonance frequency and the second pressure chamber at a second resonance frequency in accordance with an electric field applied to the single piezoelectric element, the first resonance frequency being different from the second resonance frequency.