Pneumatic tire and manufacturing method of the same
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United States of America Patent
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May 3, 2016
Grant Date -
Mar 21, 2013
app pub date -
Feb 16, 2012
filing date -
Sep 21, 2011
priority date (Note) -
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Abstract
A pneumatic tire has a tread rubber made of a nonconductive rubber. The tread rubber is provided with a first and second conductive portions made of a conductive rubber. The first conductive portion extends radially inwardly from a ground-contacting surface, extends to one side in tire width direction, and reaches a carcass layer or a side wall rubber. An exposed position of the first conductive portion is separated from a tire equator at a distance is equal to or more than 10% of a ground-contacting width. The second conductive portion extends radially inwardly from the ground-contacting surface, extends to another side in tire width direction, and reaches the carcass layer or the side wall rubber. An exposed position of the second conductive portion is separated from the tire equator at a distance is equal to or more than 10% of the ground-contacting width.
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