Invention Grant
- Patent Title: Ink cartridge
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Application No.: US16250965Application Date: 2019-01-17
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Publication No.: US10675877B2Publication Date: 2020-06-09
- Inventor: Hironori Murakami , Yasuo Kotaki , Tetsuya Ohashi , Ryoji Inoue , Takashi Fukushima , Kyosuke Nagaoka , Takeho Miyashita , Kenichi Kanno
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon U.S.A., Inc. I.P. Division
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@30481c30
- Main IPC: B41J2/175
- IPC: B41J2/175

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.
Public/Granted literature
- US20190224979A1 INK CARTRIDGE Public/Granted day:2019-07-25
Information query
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