Title:
ORGANIC PIEZOELECTRIC MATERIAL, ULTRASONIC VIBRATOR, AND ULTRASONIC IMAGE DIAGNOSIS APPARATUS FOR MEDICAL APPLICATION
Document Type and Number:
WIPO Patent Application WO/2010/001634
Kind Code:
A1
Abstract:
This invention provides an organic piezoelectric material for constituting an ultrasonic vibrator, which has excellent piezoelectric properties and is suitable in high-frequency and broad bands, an ultrasonic probe using the organic piezoelectric material, and an ultrasonic image diagnosis apparatus for medical application. The organic piezoelectric material is a film-shaped organic piezoelectric material and is characterized in that the organic piezoelectric material is produced by a process comprising performing heat treatment at a temperature at or above room temperature and at or below a temperature of 10°C below the melting point of the organic piezoelectric material while applying tension and subsequently performing relaxation treatment in a period between the completion of the heat treatment and the time when the material has been cooled to room temperature.
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Inventors:
OHNUMA, Kenji (Inc. 1 Sakura-machi, Hino-sh, Tokyo 11, 19185, JP)
Application Number:
JP2009/053373
Publication Date:
January 07, 2010
Filing Date:
February 25, 2009
Export Citation:
Assignee:
Konica Minolta Medical & Graphic, Inc. (1 Sakura-machi, Hino-shi Tokyo, 11, 19185, JP)
コニカミノルタエムジー株式会社 (〒11 東京都日野市さくら町１番地 Tokyo, 19185, JP)
コニカミノルタエムジー株式会社 (〒11 東京都日野市さくら町１番地 Tokyo, 19185, JP)
International Classes:
H01L41/193; A61B8/00; B29C55/02; B29C71/02; C08F214/22; C08J5/18; G01N29/24; H01L41/08; H01L41/26; H04R17/00
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