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:
Jan. 22, 2013
Filed:
Nov. 24, 2009
Yoichiro Shimizu, Kasugai, JP;
Yoichiro Shimizu, Kasugai, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya-shi, Aichi-ken, JP;
Abstract
A liquid ejection head may include a first flow channel member and a second flow channel member, wherein the first flow channel member and the second flow channel member are disposed to form a liquid supply flow channel configured to supply liquid to an ejection port, a supply and discharge flow channel communicated with a supply port and a discharge port, and a communicating flow channel configured to communicate the supply and discharge flow channel to the liquid supply flow channel. The liquid ejection head may also include a seal member which constitutes a part of the supply and discharge flow channel and connects the first flow channel member to the second flow channel member in a water-tight manner. The communicating flow channel may be communicated with the supply and discharge flow channel via a filter disposed in the interior of the second flow channel member.