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. 15, 2022
Filed:
Jun. 22, 2017
Bridgestone Corporation, Tokyo, JP;
Daisuke Maehara, Kodaira, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
In my pneumatic tire, a circumferential belt is formed by a spirally wound band strip, the tread includes at least three circumferential land portions, cords of the inclined belt layer are steel cords, the total cross-sectional area of the steel cords per 25 mm of width perpendicular to the extending direction of the steel cords is from 2.3 to 4.0 mm, a gap is present in the tire width direction between each lap of the band strip, and the relational expression W/{(w+2)+0.3×w}≥1.0 is satisfied, where W is the width in the tire width direction of the circumferential land portion with the smallest width among the circumferential land portions, w is the width of the band strip in the tire width direction, and d is the width of the gap in the tire width direction between each lap of the band strip.