Bridgestone Corporation

Bridgetone Corporation

Daita Itoi

Yasuo Himuro

Takamitsu Nakamura

Sotaro Iwabuchi

Yuichiro Ogawa

Takaki Hayashi

Atsushi Miyasaka

Hidemitsu Nakagawa

Tsutomu Nakamura

Yukihiko Kubo

Seiichirou Kawai

A tire center slant groove near tread surface tire equatorial plane extends toward reverse rotation-direction of designated rotation-direction while slanting from a tire equatorial plane side to a tire-width direction outer side, an extension direction angle forms with respect to a tire circumference-direction within range, 3&#xb0;-10&#xb0;; and at center slant groove-end portion in reverse rotation-direction, at least a tire-width direction outer side groove-edge of the center slant groove forms into a circular-arc-shaped portion to have the tire-width direction outer side groove-edge angle formed with respect to tire circumference-direction, the angle increasing toward reverse rotation-direction, the tire-width direction outer side groove-edge angle of the center slant groove forms with respect to tire circumference-direction larger than an angle of a tire-width direction inner side groove-edge of the center slant groove forms with respect to tire circumference-direction, and the center slant groove depth gradually decreases toward the center slant groove-edge in reverse rotation-direction.

Tire for two-wheeled motor vehicle

Sidewall portion of an automobile tire

A tirehas an endless decorative bandon a surface of a sidewall. The decorative bandhas one or more first indicative sectorand one or more second indicative sectorwhich are arranged alternately and consecutively in the circumferential direction. The first indicative sectorconsists of a background portionwhich continuously leads to the sidewall portionadjacent to the first indicative sector with a uniform surface roughness value, and a foreground portionwhich is arranged in the background portionand forms marks by having a surface roughness value larger than that of the background portion. A background portionconstituting a part or whole of the second indicative sectorhas a surface rougher than any of the sidewall portionand the background portionof the first indicative sector

Growing community of inventors

Chuo-ku, Japan

Daita Itoi