Run-flat tire

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12251966
APP PUB NO 20210031562A1
SERIAL NO

16981683

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A run-flat tire includes a reinforcing rubber layer with a roughly crescent-shaped meridian cross-section disposed in sidewall portions at both sides in a tire width direction. The tread portion is provided formed of a tread rubber that includes a cap tread rubber and an undertread rubber disposed on an inner side of the cap tread rubber in a tire radial direction and having a higher hardness than the cap tread rubber. In a meridian cross-section, a gauge of the undertread rubber on a shoulder land portion on an outer side of an outermost main groove located furthest outward in the tire width direction is thicker than a gauge of the undertread rubber of a center land portion closest to a tire equatorial plane.

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Patent Owner(s)

  • THE YOKOHAMA RUBBER CO. LTD.

International Classification(s)

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  • 2019 Application Filing Year
  • B60C Class
  • 1171 Applications Filed
  • 654 Patents Issued To-Date
  • 55.85 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Harada, Shunya Hiratsuka, JP 7 18

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  • B60C Class
  • 0 % this patent is cited more than
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3380020406080100120140160180200220240260280300320340360

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