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:
Apr. 09, 2019
Filed:
Dec. 01, 2016
Azbil Corporation, Chiyoda-ku, JP;
Ayumi Tsushima, Chiyoda-ku, JP;
Yoshiyuki Ishikura, Chiyoda-ku, JP;
Hirofumi Tojo, Chiyoda-ku, JP;
Tatsuo Tanaka, Chiyoda-ku, JP;
Rina Ogasawara, Chiyoda-ku, KR;
AZBIL CORPORATION, Chiyoda-ku, JP;
Abstract
A bottom surface of a sensor chip (or a lower surface of a first retaining member) that introduces the pressure of a measured fluid is joined to a bottom surface of a sensor chamber (or to an inner wall surface of a base body) to allow an enclosing chamber (formed by a pressure receiving chamber and a pressure guiding passage) between a pressure receiving diaphragm and the bottom surface of the sensor chip to communicate with a pressure guiding hole in the first retaining member. The sensor chamber is made open to the atmosphere. Thus, a wire bonding portion of a sensor diaphragm from which wires extend is positioned outside the enclosing chamber, and electrode pins and an enclosed liquid in the enclosing chamber are separated from each other.