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:
Apr. 16, 2024
Filed:
Jun. 24, 2020
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventor:
Kenjiro Okaguchi, Kyoto, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 45/047 (2006.01); F04B 43/00 (2006.01); F04B 43/04 (2006.01); F04B 43/09 (2006.01);
U.S. Cl.
CPC ...
F04B 45/047 (2013.01); F04B 43/0081 (2013.01); F04B 43/046 (2013.01); F04B 43/095 (2013.01);
Abstract
A pump device includes a piezoelectric pump, a piezoelectric pump, and a driving circuit. The piezoelectric pump is driven at a first frequency when singly driven. The piezoelectric pump is driven at a second frequency when singly driven. The driving circuit drives the piezoelectric pump and the piezoelectric pump at the same driving frequency.