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:
Sep. 29, 2026
Filed:
Aug. 30, 2022
Nok Corporation, Tokyo, JP;
Chiyota Ogata, Kumamoto, JP;
Tasuku Ono, Kumamoto, JP;
Shinji Ushijima, Kumamoto, JP;
Yohei Miki, Kumamoto, JP;
Kodai Matsumoto, Kumamoto, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A gasket () includes a body portion () in an annular shape having a basal surface () to contact a bottom surface () of a groove() and a top surface () to contact a second member () and extending over an entire circumferential direction of the gasket (), a first protrusion pair () protruding from the body portion () respectively toward both side surfaces () of the groove () and extending over the entire circumferential direction; and a second protrusion pair () protruding from the first protrusion pair () respectively toward both the side surfaces (). Respective second protrusions () of the second protrusion pair () are disposed at a same position in the circumferential direction, and tip ends () of the respective second protrusions () are formed in a planar shape to be along the side surfaces of the groove (). A first gasket width (W) of the gasket () is smaller than a groove width (W), and a second gasket width (W) is larger than the groove width (W).