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. 04, 2012
Filed:
Sep. 09, 2009
Hajime Yamada, Ishikawa-gun, JP;
Naoko Aizawa, Yasu, JP;
Yoshihiro Koshido, Yasu, JP;
Koji Fujimoto, Otsu, JP;
Toru Yabe, Konan, JP;
Michio Kadota, Kyoto, JP;
Hajime Yamada, Ishikawa-gun, JP;
Naoko Aizawa, Yasu, JP;
Yoshihiro Koshido, Yasu, JP;
Koji Fujimoto, Otsu, JP;
Toru Yabe, Konan, JP;
Michio Kadota, Kyoto, JP;
Murata Manufacturing Co., Ltd., Kyoto, JP;
Abstract
An in-liquid-substance detection sensor that achieves size reduction and detection accuracy improvement includes a piezoelectric substrate, at least two SAW devices provided on one major surface of the piezoelectric substrate and each having at least one IDT electrode defining a sensing portion, outer electrodes provided on the other major surface of the piezoelectric substrate and electrically connected to the SAW devices through vias extending through the piezoelectric substrate, a channel-defining member provided on the one major surface of the piezoelectric substrate so as to surround the SAW devices and a region connecting the SAW devices to each other, thereby defining sidewalls of a channel, and a protective member bonded to the one major surface of the piezoelectric substrate with the channel-defining member interposed therebetween, thereby sealing the channel, the protective member having at least two through holes communicating with the channel.