The Yokohama Rubber Co., Ltd.

Riichiro Mama

Izumi Kuramochi

Daisuke Kanenari

Kazuto Yamakawa

Zenichiro Shida

Masahiro Iida

Tadayoshi Hiraga

Hiroshi Tokizaki

Tomohiko Kogure

Kenichiro Endo

Hisaya Morishita

Kenichi Shirai

Tadanobu Nagumo

Takeo Masaki

Kenichiro Endou

Tadashi Harashima

Nobuhito Takasugi

A pneumatic tire comprising a rubber member containing a short fiber (A&prime;) formed by the fibrillation of a short fiber (A) whose cross section takes a sea-island structure essentially composed of at least two polymers.

Pneumatic radial tire reinforced with fibrillated sea-island short polymer fibers

A pneumatic tire for passenger cars, having a carcass layer laid between left and right beads, and two belt layers provided in an outer peripheral side of the carcass layer in a tread, wherein a width of a second belt layer counted from the side of the carcass layer is set to 95-110% of a ground contacting width of the tread, a recess being provided in each shoulder so that the center of the recess is positioned in a region separate from a position of the shoulder which corresponds to an edge of the second belt layer toward a relative bead by a distance in the range of 8-14% of a width of the same belt.

Pneumatic tire for passenger cars having shoulder recess

Automobile tire

A pneumatic tire having a tread portion with a tread pattern which is constituted by main grooves, auxiliary grooves, lug grooves and sipes, wherein the mean depth Gc of the auxiliary grooves, the mean depth Gs of the lug grooves and the mean depth Gk of the sipes are determined in relation to the mean depth G of the main grooves so as to meet the following conditions:

Pneumatic tire tread

Growing community of inventors

Hiratsuka, Japan

Riichiro Mama