This pneumatic tire is provided with a center land section (5) demarcated between a pair of center primary grooves (3) extending in a zig-zag shape at a tread section (2). The center land section (5) is provided with: one center narrow groove (10) extendin...

The present invention provides a deterioration analysis method capable of analyzing in detail deterioration of a polymer material, and in particular deterioration in the surface condition of a polymer material with low conductivity. The present invention r...

Provided is a pneumatic tire (1) including an inner liner (9) disposed inwardly in the tire relative to a carcass ply (6) bridged between a pair of bead portions (4). The inner liner (9) is formed of a first layer (PL1) disposed inwardly in the tire and a ...

Pneumatic tire (1) with carcass (6) and sidewall rubbers (3G), wherein the sidewall rubber (3G) includes an inner layer (10) and an outer layer (11); the outer layer (11) has a complex elastic modulus E* higher than the inner layer (10) and a thickness tha...