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:
May. 18, 2004
Filed:
Feb. 22, 2001
Shigenori Watari, Hitachinaka, JP;
Hajime Katou, Chiyoda-machi, JP;
Katsuhiro Kambara, Hitachinaka, JP;
Hiroyasu Uchida, Hitachinaka, JP;
Takeshi Shibuya, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Multiple piezoelectric elements are arranged in a row along the top of liquid level in a reaction vessel . An ultrasonic reflecting material is installed on the bottom of the portion of the heat insulating bath where heat insulating medium is stored. A lateral ultrasonic wave is generated on the lower side by actuation of the piezoelectric element . Wave is reflected by the ultrasonic reflecting material . As lower ultrasonic wave advances along the wall surface of the reaction vessel, it collides with the specimen liquid, thereby causing a portion of the liquid level closer to the piezoelectric element to be raised. When lateral ultrasonic wave is applied to this portion, it reaches the inclined portion of the raised liquid level of the specimen. Swirling flow by agitation is produced by acoustic radiation pressure of the ultrasonic wave. The specimen and reagent are mixed and agitated by this swirling flow.