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:
Mar. 23, 1999
Filed:
Feb. 18, 1997
Applicant:
Inventors:
Yukio Ito, Machida, JP;
Yutaka Sato, Kashiwa, JP;
Toshio Kondo, Kunitachi, JP;
Takaya Ohsawa, Kitakatsushika-gun, JP;
Assignee:
Hitachi Medical Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310322 ; 310334 ; 310326 ; 310327 ;
Abstract
An ultrasonic probe includes a plurality of piezoelectric elements arrayed on acoustic absorption backing material with predetermined spaces, a plurality of acoustic matching members formed on the piezoelectric elements and arrayed with gaps smaller than array gaps of the piezoelectric elements, polymer resin with which only the gaps between the piezoelectric elements are filled and having hardness lower than material of the piezoelectric elements, and an acoustic lens formed on the plurality of acoustic matching members.