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:
Jul. 18, 2006
Filed:
Sep. 09, 2004
Hiroto Sugahara, Aichi-ken, JP;
Masaaki Deguchi, Chiryu, JP;
Atsushi Ito, Nagoya, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A cavity plate of an ink-jet head is formed by stacking a clad plate on a manifold plate. The clad plate is formed by unitarily bonding a first layer and a second layer, which are made of different materials. Pressure chambers and communicating holes to the pressure chambers are formed in the first and second layers, respectively. Each of the first and second layers is etched using an etching agent that is able to only one of the layers to form therein the pressure chambers or the communicating holes. Thus, the pressure chambers and the communicating holes are formed with high precision in depth. In addition, the cavity plate including the clad plate with a predetermined thickness is easy to handle when manufactured into an ink-jet head.