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:
Feb. 07, 2012
Filed:
Oct. 31, 2008
Takeo Eguchi, Kanagawa, JP;
Shogo Ono, Kanagawa, JP;
Kazuyasu Takenaka, Tokyo, JP;
Atsushi Nakamura, Kanagawa, JP;
Yuichiro Ikemoto, Kanagawa, JP;
Shigeyoshi Hirashima, Kanagawa, JP;
Atsushi Nakayama, Kanagawa, JP;
Shota Nishi, Kanagawa, JP;
Yuji Yakura, Kanagawa, JP;
Shigeyoshi Fujiki, Kanagawa, JP;
Manabu Matsuda, Kanagawa, JP;
Takeo Eguchi, Kanagawa, JP;
Shogo Ono, Kanagawa, JP;
Kazuyasu Takenaka, Tokyo, JP;
Atsushi Nakamura, Kanagawa, JP;
Yuichiro Ikemoto, Kanagawa, JP;
Shigeyoshi Hirashima, Kanagawa, JP;
Atsushi Nakayama, Kanagawa, JP;
Shota Nishi, Kanagawa, JP;
Yuji Yakura, Kanagawa, JP;
Shigeyoshi Fujiki, Kanagawa, JP;
Manabu Matsuda, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A liquid ejection head includes an energy-generating element arranged on a semiconductor substrate, a barrier layer deposited on the semiconductor substrate for forming a liquid chamber in the periphery of the energy-generating element, and a nozzle sheet bonded on the barrier layer and having a nozzle formed at a position opposing the energy-generating element, in which the liquid ejection head ejects liquid contained in the liquid chamber from the nozzle as liquid droplets by the energy-generating element, and the barrier layer is provided with a plurality of depressions, each having an independent contour, arranged within a range, which is separated from the border of the barrier layer, on an adhesive region adhering to the nozzle sheet.