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. 23, 2002
Filed:
Feb. 12, 2001
Atsushi Yamazaki, Matsumoto, JP;
Ayao Ogawa, Hotaka-machi, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
There is provided an ink cartridge that is capable of supplying a pigment-based ink and at the same time suppressing the mixing of a sedimentary ink into the supplied pigment-based ink, or suppressing the generation of the sedimentary ink even when left unused, or removing the sedimentary ink by initial delivery of the ink after the cartridge is left unused, thereby reducing unevenness of printing. An ink reservoir holds an ink absorbent material therein for storage of the pigment-based ink. An ink delivery block is formed at a lower portion of the ink reservoir, and has a communication passage formed therethrough such that it extends from an outside of the ink reservoir up to an inner opening of the communication passage opening into an inside of the ink reservoir, for communication between the outside and the inside of the ink reservoir. The sedimentary ink is suppressed from flowing to the inner opening.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile