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.:

US 9891128 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 13, 2018

Filed:

Apr. 13, 2015
Applicant:

Fujikoki Corporation, Tokyo, JP;

Inventors:

Tomohisa Aoyama, Tokyo, JP;

Hiroshi Ito, Fukushima, JP;

Motohisa Mukai, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 9/00 (2006.01); H01G 7/00 (2006.01); G01L 19/00 (2006.01);
U.S. Cl.
CPC ...
G01L 9/008 (2013.01); G01L 19/0046 (2013.01); H01L 2224/48091 (2013.01);
Abstract

According to the invention, a pressure receiving space of a pressure sensor is prevented from being charged. In the pressure sensor, a diaphragm is mounted on a base fixed in a cover to form the pressure receiving space in which oil is sealed. A semiconductor pressure detection device is provided in the pressure receiving space, and adjustment lead pins and an earth-terminal lead pin are connected to terminals of the semiconductor pressure detection device by bonding wires. A wiring substrate is provided with the base of the pressure receiving space interposed and faces the base, and a metal foil is provided such that one or more lead pins of the adjustment lead pins and the earth-terminal lead pin are electrically connected in the wiring substrate. Therefore, the charging of the insulative medium sealed in the pressure receiving space is prevented.


Find Patent Forward Citations

Aoyama, Tomohisa. (2018). Pressure sensor having a digital circuit unit connected to adjustment terminals and earth terminals (U.S. Patent No. 9891128). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9891128

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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