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:
Feb. 13, 2018
Filed:
Apr. 15, 2014
Hitachi Metals, Ltd., Minato-ku, Tokyo, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
There is provided a pressure sensor which includes: a diaphragm having an inside surface facing to a fluid-tight space, the diaphragm including a diaphragm film that is part of the inside surface and deformable in response to a pressure application, and a diaphragm film support that is part of the inside surface and constitutes a periphery of the diaphragm film; a strain sensor bonded to the inside surface so as to lie partially on the periphery and having plural strain gauges thereon; and a depression formed on the inside surface, when defining an x-direction oriented from center of the inside surface to a position bonded of the strain sensor and a y-direction perpendicular to the x-direction on the inside surface, the depression extending a certain length in the y-direction, the depression being adjacent to or a certain distance apart from an edge of the strain sensor in the y-direction.