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. 29, 2018
Filed:
Dec. 07, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Shigeru Watanabe, Yokohama, JP;
Kouhei Tokuda, Tokyo, JP;
Tsutomu Obata, Tokyo, JP;
Hiroyuki Matsunaka, Hachioji, JP;
Naoaki Wada, Yokohama, JP;
Eiichi Adachi, Kawasaki, JP;
Noriyuki Aoki, Tokyo, JP;
Toshiro Sugiyama, Yokohama, JP;
Ryohei Maruyama, Kawasaki, JP;
Ryuichi Kato, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink supply apparatus includes a first ink tank, a second ink tank, a first flow path configured to connect the first ink tank and the second ink tank, a volume change unit disposed on the first flow path, configured to be able to change an internal volume of its own, and allow ink to flow thereinto from the first flow path when the internal volume is expanded and to flow out to the first flow path when the internal volume is reduced, a first opening and closing unit disposed between the first ink tank and the volume change unit, and a second opening and closing unit disposed between the second ink tank and the volume change unit.