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:
Oct. 06, 2026
Filed:
May. 17, 2024
Seiko Epson Corporation, Tokyo, JP;
Tadashi Watanabe, Matsumoto, JP;
Tadahiro Mizutani, Shiojiri, JP;
Yoshihiro Koizumi, Shiojiri, JP;
Yuta Koike, Matsumoto, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
An ink refill container for refilling a printer with ink, includes: a container body; an ink-outlet forming portion including a tubular portion and a valve located in an ink outlet; and a cap configured to be detachably attached to the ink-outlet forming portion. The cap includes an inner top-surface portion. The inner top-surface portion includes a center protrusion configured to push the valve to open the valve, an annular protrusion configured to be in contact with the tubular portion to seal the tubular portion, and at least one of an annular peripheral wall portion and a plurality of ribs. A gap between the center protrusion and the peripheral wall portion or each of gaps between the ribs has a shape of a recess. The recess has a bottom on the inner top-surface portion side and an opening open toward the ink-outlet forming portion and is configured to hold ink.