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. 25, 2001
Filed:
Sep. 10, 1999
Applicant:
Inventor:
Mikio Izumi, Soka, JP;
Assignee:
Hitachi Medical Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 4/104 ;
U.S. Cl.
CPC ...
H01L 4/104 ;
Abstract
An ultrasonic probe comprising, in an array form, ultrasonic oscillators of a laminate structure fabricated by alternately laminating oscillation element layers and electrode layers, wherein the number of laminate layers of each ultrasonic oscillator becomes greatest at the center and decreases step-wise towards peripheral portions in an elevation direction.