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. 26, 2013
Filed:
Dec. 12, 2008
Minoru Tomita, Saitama, JP;
Masahiro Suzuki, Kanagawa, JP;
Shun Kayama, Saitama, JP;
Yukiko Shimizu, Saitama, JP;
Minoru Tomita, Saitama, JP;
Masahiro Suzuki, Kanagawa, JP;
Shun Kayama, Saitama, JP;
Yukiko Shimizu, Saitama, JP;
Sony Corporation, Tokyo, JP;
Abstract
Disclosed is a piezoelectric pump. The piezoelectric pump includes a pump body, a drive unit, a detection section, and a control unit. The pump body includes a hole for introducing a fluid from outside thereinto and jetting the fluid from inside, a wall portion disposed so as to face the hole, and a piezoelectric body provided on the wall portion to vibrate the wall portion. The drive unit drives the piezoelectric body. The detection section detects a signal corresponding to a discharge rate of the fluid from the hole. The control unit controls a drive voltage and a drive frequency of the drive unit on the basis of the signal.