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. 22, 2005
Filed:
Dec. 08, 2003
Akemi Ishizaki, Yokohama, JP;
Akemi Ishizaki, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet cartridge includes an ink jet recording head; an ink container for containing ink to be supplied to the recording head; an ink supply source connecting portion which is provided in the ink container and which is connectable with an ink supply source to permit filling of the ink into the ink container; a pressure reduction source connecting portion connectable with a pressure reduction source for reducing pressure in the ink container to permit filling of the ink; an absorbing material provided in the ink container, the absorbing material is capable of retaining the ink and functioning as a negative pressure source for the recording head; a gas-liquid separating member which is disposed between the absorbing material and the pressure reduction source connecting portion and which has a gas permeability and liquid penetration resisting property; and supporting members, disposed at respective sides of the gas-liquid separating member, for supporting the gas-liquid separating member.