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:
Feb. 03, 2026
Filed:
Jul. 06, 2021
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Asuka Suzuki, Kanagawa, JP;
Takamitsu Chaya, Kanagawa, JP;
The Yokohama Rubber Co., LTD., Tokyo, JP;
Abstract
In a pneumatic tire provided with a carcass layer and a belt layer, the carcass layer is formed of an organic fiber cord having an elongation at break of 20% to 30%, an elongation in a sidewall portion under a load of 2.0 cN/dtex of 5.5% to 8.0%, and a product A=D×Ec of a fineness based on corrected mass D (unit: dtex/piece) and a count Ec (unit: piece/50 mm) of 1.8×10dtex/50 mm to 3.0×10dtex/50 mm, and the belt layer is formed of a steel cord having a stress at break of 3300 MPa or more and a product B=S×Eb of a cross-sectional area S (unit: mm/piece), and a count Eb (unit: piece/50 mm) is from 6.0 mm/50 mm to 7.5 mm/50 mm.