B - Operations – Transporting – 41 – L
Patent
B - Operations, Transporting
41
L
B41L 27/04 (2006.01) B41J 2/175 (2006.01)
Patent
CA 2186687
An ink cartridge for ink jet use is provided with an aperture for filling in the cartridge with ink. The circumference of the aperture and a part of a plug pressed in the aperture are fused and welded to be formed integrally to airtightly close the aperture, and obtain an integrated structure without any interface. Hence, it is made possible to reliably prevent ink from leaking therefrom, even if some scratches and cracks are present on both of them. This contributes to eliminating inspection steps to find ink leakage in the course of manufacture, and also, contributes to improving the yield of production. As a result, a significant reduction of costs is possible, while enhancing the reliability of the ink cartridge.
Ishinaga Hiroyuki
Kamiyama Yuji
Kaneko Hajime
Masuda Kazuaki
Tanaka Hiroaki
Canon Kabushiki Kaisha
Ridout & Maybee Llp
LandOfFree
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