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:
Jun. 12, 2012
Filed:
Mar. 01, 2010
Shuntaro Machida, Kokubunji, JP;
Hiroyuki Enomoto, Musahiro, JP;
Yoshitaka Tadaki, Hanno, JP;
Tatsuya Nagata, Ishioka, JP;
Shuntaro Machida, Kokubunji, JP;
Hiroyuki Enomoto, Musahiro, JP;
Yoshitaka Tadaki, Hanno, JP;
Tatsuya Nagata, Ishioka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An ultrasonic transducer includes a first electrode, a second electrode, an insulating film disposed between the first and second electrodes, and a cavity disposed between the first and second electrodes. The insulating film includes a projection extending in the cavity, and a portion of the cavity is disposed between the projection and the first electrode. A portion of one of the first electrode and the second electrode has an opening corresponding to a position of the projection of the insulating film when viewed in plan view.