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. 11, 2005
Filed:
Feb. 24, 2003
Applicants:
Suguru Taniguchi, Tokyo, JP;
Akira Tsujimoto, Kanagawa, JP;
Toshihiko Ujita, Kanagawa, JP;
Kiyomitsu Kudo, Tokyo, JP;
Inventors:
Suguru Taniguchi, Tokyo, JP;
Akira Tsujimoto, Kanagawa, JP;
Toshihiko Ujita, Kanagawa, JP;
Kiyomitsu Kudo, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2175 ;
U.S. Cl.
CPC ...
Abstract
A sub-tank unit of an ink jet cartridge can contain ink for image printing therein. The sub-tank unit includes a container main body having a ink storage for storing the ink, a ventilation path enabling the liquid storage and the outside of the container main body to communicate with each other, a gas liquid separation member disposed to communicate with the ventilation path, and a capillary member disposed between the ink storage and the gas liquid separation member.