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:
Mar. 19, 2024
Filed:
Jul. 01, 2020
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Tsubasa Kitahara, Kanagawa, JP;
Yoshiaki Matsumoto, Kanagawa, JP;
Mika Nagashima, Kanagawa, JP;
Mitsuo Tsuji, Kanagawa, JP;
Yoshinori Izumi, Kanagawa, JP;
Rinko Kushida, Kanagawa, JP;
Koichiro Miyoshi, Kanagawa, JP;
The Yokohama Rubber Co., LTD., Tokyo, JP;
Abstract
A tire vulcanization mold in which a surface roughness in the groove molding portion of the tread molding surface is made smaller than a surface roughness in the land portion molding portion, in which a surface roughness in the groove molding portion is minimized to 0.12 μm or less in a range including at least a main groove molding portion, and in which a surface roughness in the land portion molding portion is made to be 3.2 μm or more, is used to manufacture a tire, and when cleaning the tread molding surface, the tread molding surface is irradiated with a laser beam to remove contaminant adhered to the tread molding surface.