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. 16, 2022
Filed:
Jan. 15, 2020
Applicant:
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Inventors:
Taiki Goto, Shizuoka, JP;
Kazuhiro Hara, Shizuoka, JP;
Assignee:
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/14 (2006.01); B41J 2/045 (2006.01); H01L 41/09 (2006.01); F04B 43/02 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14233 (2013.01); B41J 2/045 (2013.01); F04B 43/02 (2013.01); H01L 41/0973 (2013.01);
Abstract
According to an embodiment, a piezoelectric pump includes a pressure chamber and a buffer chamber. The buffer chamber is provided for at least one of an inlet of the pressure chamber in which liquid flows or an outlet of the pressure chamber from which the liquid is discharged. The buffer chamber includes a wall portion that forms a gas chamber that retains gas from the liquid.