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:
Feb. 01, 2000
Filed:
Mar. 11, 1998
Yohachi Yamashita, Yokohama, JP;
Senji Shimanuki, Atsugi, JP;
Kouichi Harada, Fujisawa, JP;
Shiroh Saitoh, Kawasaki, JP;
Mamoru Izumi, Tokyo, JP;
Tsuyoshi Kobayashi, Tokyo, JP;
Masaru Kawachi, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
An ultrasonic probe provided with an ultrasonic wave-transmitting/receiving element comprising a 1-3 type or 2-2 type composite piezoelectric body exposing a piezoelectric monocrystal from at least one of the faces of the composite piezoelectric body, and an electrode mounted on at least one of the faces of the composite piezoelectric body, wherein the composite piezoelectric body comprises a piezoelectric monocrystal whose electromechanical coupling coefficient ratio k.sub.33 /k.sub.t is 1.6 or more, and a resin whose acoustic impedance Zp is 4.times.10.sup.6 kg/m.sup.2 s or less.