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:
Dec. 24, 2024
Filed:
Sep. 09, 2020
Konica Minolta, Inc., Tokyo, JP;
Yohei Sato, Hachioji, JP;
Akihisa Shimomura, Atsugi, JP;
Yoshinori Yoshida, Hino, JP;
Hiroaki Kozai, Kodaira, JP;
KONICA MINOLTA, INC., Tokyo, JP;
Abstract
An inkjet head contains a silicon nozzle substrate having an ink channel surface and an ink ejection surface facing the channel surface, and having a nozzle penetrating from the channel surface to the ejection surface; a channel substrate bonded to the channel surface of the silicon nozzle substrate, and including an ink channel and a substrate body that forms the ink channel; and a liquid-repellent film provided on the ejection surface of the silicon nozzle substrate. The channel substrate includes a through channel that penetrates the substrate body so as to face the nozzle, n-number of individual circulation channels that communicate with the through channel, extend in a direction away from the nozzle, and have a portion overlapping the substrate body in a plan view. A positional relationship between each of the individual circulation channels and the nozzle satisfies a specific Expression 1.