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:
Sep. 27, 2011
Filed:
Apr. 15, 2009
Katsuhiro Wakabayashi, Hachioji, JP;
Hideo Adachi, Iruma, JP;
Kazuya Matsumoto, Nagano, JP;
Mamoru Hasegawa, Nagano, JP;
Kazuhisa Karaki, Nagano, JP;
Yoshitaka Kamiya, Hachioji, JP;
Katsuhiro Wakabayashi, Hachioji, JP;
Hideo Adachi, Iruma, JP;
Kazuya Matsumoto, Nagano, JP;
Mamoru Hasegawa, Nagano, JP;
Kazuhisa Karaki, Nagano, JP;
Yoshitaka Kamiya, Hachioji, JP;
Olympus Medical Systems Corp., Tokyo, JP;
Abstract
An ultrasound transducer includes a substrate, an ultrasound transducer cell placed on one surface of the substrate and having a lower electrode, a first gap portion placed on the lower electrode and an upper electrode placed on the first gap portion, a first conductive layer placed on the other surface of the substrate and electrically connected to one of the lower electrode and the upper electrode, an electret film placed on the first conductive layer, an insulating layer placed on the electret film, and a second conductive layer placed on the insulating layer and electrically connected to the one of the lower electrode and the upper electrode not electrically connected to the first conductive layer.