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:
Nov. 10, 2020
Filed:
May. 16, 2018
Nissha Co., Ltd., Kyoto, JP;
Atsuo Inoue, Kyoto, JP;
NISSHA CO., LTD., Kyoto, JP;
Abstract
A pressure detection device includes a pressure sensitive sensor and a pressure calculating unit. The pressure sensitive sensor includes an upper base substrate, a lower base substrate, and a pressure sensitive layer formed on a surface of one of the base substrates. The pressure sensitive layer includes a pair of pressure sensitive portions located symmetrically with respect to a plane center. A first elastic body and a second elastic body are disposed at a position to which a pressing force is applied. A first electrode and a second electrode are disposed with the pressure sensitive layer. The pressure calculating unit is configured to cause the pressure sensitive sensor to detect a pressure change for each of the pair of pressure sensitive portions and to add a sign-reversed pressure change in a pressure sensitive portion to a pressure change in the other pressure sensitive portion to amplify an output.