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:
Mar. 19, 2013
Filed:
Feb. 06, 2008
Hideo Adachi, Iruma, JP;
Yukihiko Sawada, Tokorozawa, JP;
Katsuhiro Wakabayashi, Hachioji, JP;
Akiko Mizunuma, Hachioji, JP;
Takuya Imahashi, Kawasaki, JP;
Etsuko Omura, Saitama, JP;
Yoshiyuki Okuno, Fussa, JP;
Shuji Otani, Oume, JP;
Miyuki Murakami, Hino, JP;
Kiyoshi Nemoto, Hino, JP;
Kozaburo Suzuki, Hachioji, JP;
Naomi Shimoda, Fukushima, JP;
Hideo Adachi, Iruma, JP;
Yukihiko Sawada, Tokorozawa, JP;
Katsuhiro Wakabayashi, Hachioji, JP;
Akiko Mizunuma, Hachioji, JP;
Takuya Imahashi, Kawasaki, JP;
Etsuko Omura, Saitama, JP;
Yoshiyuki Okuno, Fussa, JP;
Shuji Otani, Oume, JP;
Miyuki Murakami, Hino, JP;
Kiyoshi Nemoto, Hino, JP;
Kozaburo Suzuki, Hachioji, JP;
Naomi Shimoda, Fukushima, JP;
Olympus Corporation, Tokyo, JP;
Abstract
It becomes possible to obtain high sound pressure in a high frequency domain by a capacitive ultrasonic transducer which comprises a membrane on which one electrode is formed, a cavity constructed in its backface, and a substrate on which these are mounted and supported and on whose surface an electrode is provided, on a surface in an ultrasonic transmission and reception side, characterized in that the membrane comprises tow or more layers, and at least one layer of them comprises a high dielectric constant film.