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:
Nov. 05, 2013
Filed:
Feb. 17, 2011
Isao Suzuki, Shizuoka, JP;
Isao Suzuki, Shizuoka, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
According to one embodiment, an ink-jet head includes a piezoelectric member which forms an ink pressure chamber, an electrode disposed on a side surface of the piezoelectric member, a nozzle plate attached to the piezoelectric member and including a nozzle hole communicating with the ink pressure chamber, a surface of the nozzle plate including a top surface of the nozzle plate, and a protection film which covers the surface of the nozzle plate, a peripheral portion of an adhesion part between the piezoelectric member and the nozzle plate, and the electrode. A recess is formed in a part of the protection film covering the top surface of the nozzle plate. The part of the protection film corresponds to a peripheral area of the nozzle hole.