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:
Dec. 23, 2025
Filed:
Jul. 26, 2022
Nok Corporation, Tokyo, JP;
Koya Matsushita, Kumamoto, JP;
Takuya Nishimura, Kumamoto, JP;
NOK CORPORATION, Tokyo, JP;
Abstract
A sealing device includes an inner peripheral surface that is a surface facing an outer peripheral surface of a shaft, and an outer peripheral surface that is a surface facing an inner peripheral surface of a shaft hole. The inner peripheral surface has an inner peripheral recessed surface that is an annular surface recessed to an outer periphery side. The outer peripheral surface has an outer peripheral recessed surface that is an annular surface recessed to an inner periphery side. The inner peripheral recessed surface of the inner peripheral surface contacts the outer peripheral surface of the shaft. The outer peripheral recessed surface of the outer peripheral surface contacts the inner peripheral surface of the shaft hole.