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:
Aug. 05, 2025
Filed:
Jul. 19, 2018
The Yokohama Rubber Co., Ltd, Tokyo, JP;
Keisuke Murase, Kanagawa, JP;
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Abstract
A pneumatic tire includes a tread portion composed of a tread rubber composition containing silica. The pneumatic tire exhibits improved processability over time without negatively affecting the wet grip properties and rolling resistance of the tread rubber composition. The tread portion includes a tread rubber composition including: 50 parts by mass to 90 parts by mass of silica, per 100 parts by mass of diene rubber containing 30 mass % to 90 mass % of a terminal-modified diene rubber; an alkylsilane; a fatty acid metal salt a containing an alkali metal element; and a fatty acid ester; and by further compounding, at an amount of 5 mass % to 12 mass % with respect to the silica amount, a sulfur-containing silane coupling agent not containing a mercapto group.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile