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:
Feb. 20, 2024
Filed:
Nov. 24, 2020
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventor:
Koichi Muramatsu, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); B41J 2/145 (2006.01); B01L 3/02 (2006.01);
U.S. Cl.
CPC ...
B01L 3/0268 (2013.01); B41J 2/04541 (2013.01); B41J 2/04581 (2013.01); B41J 2/145 (2013.01); B01L 2200/146 (2013.01); B01L 2400/0481 (2013.01); B01L 2400/0487 (2013.01);
Abstract
A liquid ejection unit includes: a liquid holding section which has an ejection port through which a liquid is ejected and which holds the liquid; a pressure adjustment section which is configured to adjust a pressure of a liquid held in the liquid holding section; and a displacement member which is configured to displace at least a part of the liquid whose pressure is adjusted and eject the liquid from the liquid holding section.