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, 2020
Filed:
May. 17, 2019
Junichi Iwata, Kanagawa, JP;
Yoshitaka Fujinuma, Ibaraki, JP;
Kanshi Abe, Ibaraki, JP;
Takayuki Nakai, Kanagawa, JP;
Koji Kawahara, Ibaraki, JP;
Junichi Iwata, Kanagawa, JP;
Yoshitaka Fujinuma, Ibaraki, JP;
Kanshi Abe, Ibaraki, JP;
Takayuki Nakai, Kanagawa, JP;
Koji Kawahara, Ibaraki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A liquid discharge head includes a plurality of nozzles arrayed in a nozzle array direction to discharge a liquid; a plurality of pressure chambers arrayed in the nozzle array direction and communicating with the plurality of nozzles, respectively; and a diaphragm forming a displaceable wall of each of the plurality of pressure chambers. The diaphragm includes a concave portion outside an arrangement region of the plurality of pressure chambers in which the plurality of pressure chambers is arrayed in the nozzle array direction.