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:
Aug. 25, 2026
Filed:
May. 21, 2024
Yuki Fujimura, Kanagawa, JP;
Keishi Miwa, Kanagawa, JP;
Yuki Fujimura, Kanagawa, JP;
Keishi Miwa, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head includes a nozzle plate, a liquid chamber substrate, a diaphragm plate, and a piezoelectric element. The nozzle plate has multiple nozzle holes from each of which a liquid is dischargeable in a discharge direction. The multiple nozzle holes are arrayed in an array direction. The liquid chamber substrate has a first face on the nozzle plate, multiple liquid chambers respectively communicating with the multiple nozzle holes, multiple chamber region in which the multiple liquid chambers are respectively disposed, and a non-chamber region outside the multiple chamber region. The diaphragm plate is disposed on a second face of the liquid chamber substrate. The piezoelectric element includes a first electrode over the diaphragm plate, a piezoelectric body on the first electrode, and a second electrode on the piezoelectric body. The first electrode has patterned openings disposed between adjacent liquid chambers in the array direction in the non-chamber region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile