Patent ID: 7770618

Claim:
A pneumatic tire comprising a tread portion having a ground contacting surface, a pair of bead portions each having a rim contacting surface, a pair of sidewall portions extending between the tread portion and bead portions, and an electrically conductive path extending continuously from a position in the rim contacting surface to a position in the ground contacting surface through one of the sidewall portions, wherein a sidewall rubber having a volume resistivity of not less than 1×10^8 ohm cm, is disposed in said one of the sidewall portions to define an outer surface of the sidewall portion, said electrically conductive path includes a helical path made of an electrically conductive rubber having a volume resistivity of not more than 1×10^7 ohm cm, and the helical path is disposed axially inside said sidewall rubber and extends spirally around the tire rotational axis, the sidewall rubber is formed by overlap winding a rubber tape, and the helical path is formed by spirally winding a rubber tape so that in the sidewall portion a positive gap is formed between the windings.