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:
Jan. 16, 2007
Filed:
Oct. 15, 2003
Applicants:
Masatoshi Takeda, Kasuya-gun, JP;
Kenichi Nakano, Fukuoka, JP;
Kazuhiro Yamauchi, Fukuoka, JP;
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A valve unit and a fluid control chip include: a valve chamber having an inlet and an outlet for a fluid; a valve element accommodated in the valve chamber; a piezoelectric element for applying vibrations to the valve chamber; and a driver for driving the piezoelectric element, wherein the piezoelectric element varies the opening by varying a frequency and/or an amplitude of the vibration applied to the valve chamber and by varying the amplitude of the valve element by the varied vibration.