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. 13, 2024
Filed:
Jan. 04, 2022
Takuma Hirabayashi, Kanagawa, JP;
Hiromichi Hirano, Kanagawa, JP;
Ryohta Yoneta, Kanagawa, JP;
Toshiaki Masuda, Kanagawa, JP;
Takuma Hirabayashi, Kanagawa, JP;
Hiromichi Hirano, Kanagawa, JP;
Ryohta Yoneta, Kanagawa, JP;
Toshiaki Masuda, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A liquid discharge head having a nozzle substrate including a nozzle from which a liquid is discharged in a liquid discharge direction, a pressure chamber communicating with the nozzle, a diaphragm defining a part of wall of the pressure chamber, and a pressure generator on a first surface of the diaphragm opposite to a second surface of the diaphragm facing the pressure chamber, the pressure generator configured to deform the diaphragm. A gap between a first line and a second line is 40 μm or less in a direction perpendicular to the liquid discharge direction, where the first line extends, in the liquid discharge direction, from a displacement center at which the diaphragm deforms with a maximum displacement amount, and the second line extends from a central position of the nozzle in the liquid discharge direction.