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. 07, 2023
Filed:
Sep. 29, 2021
Nagano Keiki Co., Ltd., Tokyo, JP;
Masashi Ogawa, Tokyo, JP;
Atsushi Imai, Tokyo, JP;
NAGANO KEIKI CO., LTD., Tokyo, JP;
Abstract
A pressure detector includes a first board with a first pressure inlet, a first groove, and a first board electrode; a second board with a second pressure inlet, a second groove, and a second board electrode; and a sensing unit arranged therebetween with a diaphragm. The first groove is in communication with the first pressure inlet so as to prevent the formation of a closed space between the first board and the diaphragm when they contact with each other. The second groove is in communication with the second pressure inlet so as to prevent the formation of a closed space between the second board and the diaphragm when they contact each other.