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:
Dec. 09, 1986
Filed:
Oct. 18, 1984
Applicant:
Inventors:
Hiroshi Takeuchi, Matsudo, JP;
Chitose Nakaya, Tokyo, JP;
Shinichiro Umemura, Hachioji, JP;
Kageyoshi Katakura, Tokyo, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi Medical Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
310358 ; 310334 ; 310800 ;
Abstract
A high-sensitivity ultrasonic probe comprising a plate of a composite material having the regions of a piezoelectric ceramic polarized uniformly in the direction of thickness and the regions of polymer, both regions existing dispersed alternately in the direction parallel to the plate surface, electrodes formed on both sides of the composite material, and a connecting layer formed on at least one side of the composite material and composed of a material harder than said polymer.