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:
Apr. 21, 2009
Filed:
Sep. 20, 2005
Yoshihumi Suzuki, Ena, JP;
Yoshihumi Suzuki, Ena, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-Shi, JP;
Abstract
An inkjet printhead is disclosed which has a cavity unit. The cavity unit includes: a nozzle film in which a plurality of ink-ejecting nozzles are formed; a first plate member which is attached to the nozzle film on a first side face thereof, and in which a through-hole is formed for use in formation of each nozzle in the nozzle film; and a second plate member which is attached to the nozzle film on a second side face thereof which is opposite to the first side face. The second plate member is substantially identical at least in linear thermal expansion to the first plate member, and includes an opening which is larger than each nozzle, and which is disposed at a position corresponding to a position of each nozzle.