A pneumatic tire includes a plurality of protrusions that are provided in a range that includes the tire maximum width position of the tire side portion, and that extend in a direction intersecting the radial direction. The plurality of protrusions are separated from each other in the tire circumferential direction by spacings, pass through the center of rotation of the tire, and extend in the tire radial direction. In a case where a first straight line and a second straight line with different tire circumferential direction positions each cross the protrusions, a ratio of a sum of masses per unit length of the protrusions the first straight line crosses to a sum of masses per unit length of the protrusion the second straight line crosses is not less than 0.8 and not greater than 1.2.

In a pneumatic tire including a tread portion extending in a tire circumferential direction and having an annular shape, a pair of sidewall portions respectively disposed on both sides of the tread portion, and a pair of bead portions disposed on an inner side of the pair of sidewall portions in a tire radial direction, a transponder is embedded in one of the sidewall portions extending in the tire circumferential direction, the transponder is covered with a coating layer, a relative dielectric constant of the coating layer is lower than a relative dielectric constant of a peripheral rubber member adjacent to the coating layer, and a shortest distance D from an outer edge of the coating layer to the transponder in a tire meridian cross-section is 0.3 mm or more.

In a pneumatic tire including a tread portion extending in a tire circumferential direction and having an annular shape, a pair of sidewall portions respectively disposed on both sides of the tread portion, and a pair of bead portions disposed on an inner side of the pair of sidewall portions in a tire radial direction, a transponder is embedded in one of the sidewall portions extending in the tire circumferential direction, the transponder is covered with a coating layer, a relative dielectric constant of the coating layer is lower than a relative dielectric constant of a peripheral rubber member adjacent to the coating layer, and a shortest distance D from an outer edge of the coating layer to the transponder in a tire meridian cross-section is 0.3 mm or more.

Provided is a pneumatic tire that can provide improved communication performance of a transponder while ensuring durability of the tire. In a pneumatic tire including a tread portion extending in a tire circumferential direction and having an annular shape, a pair of sidewall portions respectively disposed on both sides of the tread portion, and a pair of bead portions each disposed on an inner side of the pair of sidewall portions in a tire radial direction, a transponder is embedded in one of the sidewall portions, the transponder is covered with a coating layer, a relative dielectric constant of the coating layer is lower than a relative dielectric constant of a peripheral rubber member adjacent to the coating layer, and a total thickness Gac of the coating layer and a maximum thickness Gar of the transponder satisfy a relationship 1.1≤Gac/Gar≤3.0.

Provided is a pneumatic tire that can provide improved communication performance of a transponder while ensuring durability of the tire. In a pneumatic tire including a tread portion extending in a tire circumferential direction and having an annular shape, a pair of sidewall portions respectively disposed on both sides of the tread portion, and a pair of bead portions each disposed on an inner side of the pair of sidewall portions in a tire radial direction, a transponder is embedded in one of the sidewall portions, the transponder is covered with a coating layer, a relative dielectric constant of the coating layer is lower than a relative dielectric constant of a peripheral rubber member adjacent to the coating layer, and a total thickness Gac of the coating layer and a maximum thickness Gar of the transponder satisfy a relationship 1.1≤Gac/Gar≤3.0.

The present disclosure provides a tire having excellent durability during high speed running. A tire including a sidewall portion including a thermoplastic elastomer composition having a specific heat capacity of 1.7 J/ (g .Math.K) or less, the tire having a depression with a depth of 0.2 to 3.0 mm and/or a projection with a height of 0.2 to 3.0 mm between the tread ground contact edge and the tire maximum width position of the sidewall portion.

A tire sidewall comprising a vulcanized rubber and a high molecular weight wax.

A tire sidewall comprising a vulcanized rubber and a high molecular weight wax.

A tire for displaying at least one indicium includes a label affixed to the tire at a mounting location. The label has a first side facing away from the tire and a second side connected to the tire. The label's first side is configured to receive at least one adhesive appliqué having at least one indicium. The mounting location is a location on a sidewall of the tire where the label undergoes a strain equal to or less than a threshold strain under pre-defined conditions.

A method of manufacturing a rubber member includes forming a mask on which pattern structures are arranged at a constant pitch, arranging the mask on a substrate of a mold made of a metal or a semiconductor material and etching the substrate. The method further includes adhering unvulcanized rubber to the substrate, vulcanizing the unvulcanized rubber to form vulcanized rubber, and transferring a fine ridged/grooved structure to a surface of the vulcanized rubber. The fine ridged/grooved structure is formed on at least a part of the surface of the vulcanized rubber as the rubber member, the fine ridged/grooved structure having fine ridged/grooved portions arranged at the constant pitch. A region in which the fine ridged/grooved structure is provided is visually recognizable by a structural color different from colors of other regions.