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:
Jun. 04, 2013
Filed:
Jul. 05, 2011
Kousuke Nakahata, Kawasaki, JP;
Hidenori Watanabe, Zama, JP;
Kousuke Nakahata, Kawasaki, JP;
Hidenori Watanabe, Zama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A liquid ejection head includes a common liquid chamber for storing liquid, a plurality of flow paths that communicate individually with the common liquid chamber and through which liquid from the common liquid chamber flows, a plurality of ejection orifices that communicate individually with the plurality of flow paths and eject liquid supplied from the common liquid chamber, a plurality of ejection energy generating elements corresponding to the plurality of ejection orifices and generating energy necessary to cause liquid to be ejected from the plurality of ejection orifices, and a movable pressure buffer provided in the common liquid chamber and capable of absorbing a pressure wave generated by driving the plurality of ejection energy generating elements.