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. 18, 2025
Filed:
Dec. 27, 2022
Yukimasa Matsuda, Kanagawa, JP;
Keishi Miwa, Kanagawa, JP;
Yukimasa Matsuda, Kanagawa, JP;
Keishi Miwa, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes: multiple pressure chambers respectively communicating with multiple nozzles from each of which a liquid is discharged; a diaphragm defining a part of a wall of the multiple pressure chambers; an electromechanical conversion element attached to the diaphragm, the electromechanical conversion element configured to deform the diaphragm to discharge the liquid in the multiple pressure chambers through the multiple nozzles in a discharge direction; a damper film having a first surface and a second surface opposite to the first surface; a channel substrate including: a common chamber communicating with each of the multiple pressure chambers; and a first bonding portion bonded to the first surface of the damper film; and a damper substrate including a second bonding portion bonded to the second surface of the damper film.