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. 22, 2026
Filed:
Mar. 15, 2023
Valqua, Ltd., Tokyo, JP;
VALQUA, LTD., Tokyo, JP;
Abstract
The present invention relates to an annular seal material comprising a core and an outer layer covering a periphery of the core, wherein the core and the outer layer comprises a crosslinked product of a crosslinkable rubber composition having a different color from each other either after hot press molding or after secondary crosslinking or both. According to the present invention, provided are an annular seal material that can be mass-produced by using different materials for a core and an outer layer, respectively, and a method for producing the same.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile