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:
Oct. 07, 2025
Filed:
Feb. 22, 2023
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Chitose Institute of Science and Technology, Chitose, JP;
National University Corporation Hokkaido University, Sapporo, JP;
Tohoku Techno Arch Co., Ltd., Sendai, JP;
Takahiro Okamatsu, Hiratsuka, JP;
Masatsugu Shimomura, Chitose, JP;
Yuji Hirai, Chitose, JP;
Yasutaka Matsuo, Sapporo, JP;
Toshihiko Arita, Sendai, JP;
The Yokohama Rubber Co., LTD., Tokyo, JP;
Abstract
A method of manufacturing a rubber member includes forming a mask on which pattern structures are arranged at a constant pitch, arranging the mask on a substrate of a mold made of a metal or a semiconductor material and etching the substrate. The method further includes adhering unvulcanized rubber to the substrate, vulcanizing the unvulcanized rubber to form vulcanized rubber, and transferring a fine ridged/grooved structure to a surface of the vulcanized rubber. The fine ridged/grooved structure is formed on at least a part of the surface of the vulcanized rubber as the rubber member, the fine ridged/grooved structure having fine ridged/grooved portions arranged at the constant pitch. A region in which the fine ridged/grooved structure is provided is visually recognizable by a structural color different from colors of other regions.