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:
Jan. 17, 2012
Filed:
Aug. 21, 2008
Yasuyuki Okuda, Aichi-gun, JP;
Makiko Sugiura, Hekinan, JP;
Kenji Fukumura, Kariya, JP;
Takahiko Yoshida, Okazaki, JP;
Tetsuo Fujii, Toyohashi, JP;
Yasuyuki Okuda, Aichi-gun, JP;
Makiko Sugiura, Hekinan, JP;
Kenji Fukumura, Kariya, JP;
Takahiko Yoshida, Okazaki, JP;
Tetsuo Fujii, Toyohashi, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
An ultrasonic sensor for detecting an object includes: a piezoelectric element having a piezoelectric body and first and second electrodes for sandwiching the piezoelectric body; an acoustic matching element having a reception surface, which receives an ultrasonic wave reflected by the object; and a circuit electrically coupled with the piezoelectric element via a wire. The piezoelectric element is embedded in the acoustic matching element so that the acoustic matching element covers at least the first electrode, a part of a sidewall of the piezoelectric element and a part of the wire between the circuit and the piezoelectric element, and the sidewall of the piezoelectric element is adjacent to the first electrode.