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. 21, 2025
Filed:
May. 02, 2023
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Yohei Maeda, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Abstract
A tire includes a tread portion having a ground contacting surface and a first groove. A tread rubber forming the tread portion includes a first rubber layer and a second rubber layer. The second rubber layer has a complex elastic modulus smaller than a complex elastic modulus of the first rubber layer. The first groove includes a first groove edge, a groove bottom surface, and a first groove wall. In a lateral cross section of the first groove, the first groove wall includes a first wide top portion arranged between the first groove edge and the groove bottom surface and located outside the first groove edge in a groove width direction of the first groove. The first wide top portion is positioned in the second rubber layer.