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:
Jul. 19, 2011
Filed:
Dec. 16, 2008
Chih-kung Lee, Taipei, TW;
Wen-jong Wu, Taipei, TW;
Chih-chiang Cheng, Changhua, TW;
Chia-yu Lin, Taipei, TW;
Jen-hsuan Ho, Taipei, TW;
Chuin-shan Chen, Taipei, TW;
Jay Shieh, Taipei, TW;
Wen-hsin Hsiao, Lungtan Hsiang, TW;
Chih-Kung Lee, Taipei, TW;
Wen-Jong Wu, Taipei, TW;
Chih-Chiang Cheng, Changhua, TW;
Chia-Yu Lin, Taipei, TW;
Jen-Hsuan Ho, Taipei, TW;
Chuin-Shan Chen, Taipei, TW;
Jay Shieh, Taipei, TW;
Wen-Hsin Hsiao, Lungtan Hsiang, TW;
Tung Thih Electronic Co., Ltd., Taoyuan Hsien, TW;
National Taiwan University, Taipei, TW;
Abstract
An ultrasound transducer has a cup-shaped casing. The cup-shaped casing has a sidewall. A cross section of an inner surface of the sidewall being perpendicular to a central axis of the ultrasound transducer substantially shows a dumbbell-shaped contour. The dumbbell-shaped contour has a pair of opposite straight-line sections being substantially parallel to a longitudinal axis of the dumbbell-shaped contour and a pair of opposite arc sections being located respectively at two ends of the longitudinal axis of the dumbbell-shaped contour and respectively forming two enlarged portions of the dumbbell-shaped contour. Two ends of each arc section of the dumbbell-shaped contour respectively joint the straight-line sections through two curve sections and each curve section is connected to one end of the arc section and one straight-line section. At least one enlarged area of a dumbbell-shaped surface of an inside bottom surface has a recessed portion.