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:
Mar. 24, 2026
Filed:
Sep. 16, 2021
Konica Minolta, Inc., Tokyo, JP;
Akihisa Yamada, Hino, JP;
Yusaku Tanaka, Mitaka, JP;
Ryoji Matsuda, Kunitachi, JP;
Aeri Takeuchi, Sagamihara, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
An ink ejection device includes a base material, a resin layer having at least one principal surface laminated to the base material to be in contact with the base material, and an ink flow path disposed such that an ink contacts and circulates in a part of the resin layer, wherein the resin layer contains carbon, oxygen, nitrogen and silicon, and at least one of the principal surfaces satisfies the following requirements (1) and (2). (1) the principal surface is in contact with the base material. (2) the relation of the atomic concentration (atm %) of nitrogen, oxygen and silicon in the principal surface of the resin layer and the interior thereof measured by X-ray photoelectron spectroscopy is represented by the principal surface O>the interior O, and the principal surface N>0, and the principal surface Si/the interior Si is 5 or more.