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:
Jun. 09, 2020
Filed:
Jan. 17, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Hironori Murakami, Tokyo, JP;
Yasuo Kotaki, Yokohama, JP;
Tetsuya Ohashi, Matsudo, JP;
Ryoji Inoue, Kawasaki, JP;
Takashi Fukushima, Yokohama, JP;
Kyosuke Nagaoka, Kodaira, JP;
Takeho Miyashita, Yokohama, JP;
Kenichi Kanno, Fukushima, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is an ink cartridge having an ink storage portion for storing an ink therein and a plurality of flow paths for supplying the ink to the outside of the ink cartridge. In the ink cartridge, the plurality of flow paths each has a bottom flow path having a bottom opening in a vertically lower direction in the ink storage portion during use of the ink cartridge and a top flow path having a top opening in a vertically upper direction in the ink storage portion than the bottom flow path during use of the ink cartridge; the bottom flow path has a resistance different from that of the top flow path; and air is not introduced into the ink storage portion when the ink is supplied from the bottom flow path and the top flow path.