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:
Oct. 02, 1990
Filed:
Sep. 30, 1988
Applicant:
Inventors:
Satoshi Aida, Kanagawa, JP;
Nobuyuki Iwama, Tokyo, JP;
Syuzi Suzuki, Kanagawa, JP;
Akihiro Ishiguro, Kanagawa, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
128 / ; 606128 ;
Abstract
An ultrasonic medical treatment apparatus having an piezoelectric element for generating ultrasonic energy is provided. The element is constituted by a plurality of unit piezoelectric elements of two or more different shapes. The surface areas of these unit elements are substantially equal to each other. These unit elements can be individually removed as required.