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. 12, 2009
Filed:
Jan. 11, 2006
Manabu Tomita, Kanagawa, JP;
Iwao Ushinohama, Kanagawa, JP;
Shinji Kayaba, Tokyo, JP;
Takeo Eguchi, Kanagawa, JP;
Manabu Tomita, Kanagawa, JP;
Iwao Ushinohama, Kanagawa, JP;
Shinji Kayaba, Tokyo, JP;
Takeo Eguchi, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A liquid ejection head includes a liquid chamber configured to contain liquid to be ejected from a nozzle, a liquid ejection member including the nozzle, and an energy generating element configured to provide energy to the liquid contained in the liquid chamber. The energy generating element ejects the liquid contained in the liquid chamber from the nozzle as a liquid droplet. A depression is formed on a surface of the liquid ejection member around the nozzle such that an opening of the depression has a width greater than a width of an opening of the nozzle and the nozzle is positioned at the bottom of the depression. The interior angle of the bottom corner of the depression is determined to be greater than 90 degrees.