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:
May. 10, 2016
Filed:
Jun. 19, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Hiroshi Koshikawa, Yokohama, JP;
Yasuo Kotaki, Yokohama, JP;
Kenta Udagawa, Tokyo, JP;
Naozumi Nabeshima, Tokyo, JP;
Soji Kondo, Yokohama, JP;
Masafumi Seki, Kawasaki, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
There is provided a liquid storage container capable of keeping a negative pressure therein more reliably. An ink cartridge includes a negative pressure generation unit configured to generate a negative pressure in an ink storage chamber and a filter attached to an atmosphere communication channel opening and allowing air to pass from the outside to the inside of the liquid storage chamber depending on the negative pressure in the ink storage chamber. The ink cartridge has a capillary groove configured to supply ink from a portion in which ink is stored in the ink storage chamber to the filter.