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:
Nov. 28, 2023
Filed:
Jul. 19, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Tomohiro Yamashita, Kanagawa, JP;
Takashi Saito, Kanagawa, JP;
Arihiro Saito, Saitama, JP;
Maki Motomura, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An ink jet recording method for recording an image uses an ink jet recording apparatus that includes an aqueous ink, a first ink storage portion that stores the aqueous ink, a second ink storage portion that stores the aqueous ink without impregnating it into an absorbent, and a recording head. The second ink storage portion and the recording head compose therein an ink flow path through which the aqueous ink is supplied, a filter that partitions an upstream side and a downstream side of the ink flow path is arranged, and a ratio (A/B) of volume A (mL) of the ink flow path to the upstream side and volume B (mL) of the ink flow path on the downstream side is 5 or more, the aqueous ink contains a coloring material, a nonionic surfactant, and a first water-soluble organic solvent having a relative dielectric constant of 30.0 or less.