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Ishiyama; Makoto
Kodaira, JP
No. of patents:

Patent Number Title Of Patent Date Issued
8272413 Pneumatic tire for motorcycle September 25, 2012
The present invention aims to provide a pneumatic tire for a motorcycle capable of improving turning performance on a wet road surface as compared to that of conventional tires. The pneumatic tire for a motorcycle comprises a tread 28 consisting of a tread central portion having a wi
8127813 Pneumatic tire for two-wheeled vehicle March 6, 2012
The pneumatic tire for two-wheeled vehicles including a plurality of tread rubbers constituting a tread wherein a region occupying 15 to 35% in the center of a stretched tread width, which is obtained by stretching the tread with respect to a tire equatorial plane as the center, is d
8079393 Pneumatic tire with narrow belt reinforcing layer immediately below with terminal end of folded December 20, 2011
A pneumatic tire 1 having a toroidal carcass 3 and a belt 7 consisting of belt layers 5, 6 arranged in the outer circumferential side of a crown portion 4 of the carcass 3. Between the adjacent belt layers 5, 6, the cords 8, 9 are crossed with each other with respect to an equatorial
8011404 Pneumatic tire for motorcycle September 6, 2011
A pneumatic tire for a motorcycle in which partial abrasion is suppressed by making the slip component of a tread lubber in the circumferential direction of tire as uniform as possible in the ground contacting plane. A cushion rubber layer 38 having elastic modulus lower than that of the
7617855 Pneumatic tire November 17, 2009
The ground contact pressure on land portions 44 is uniformed so that drivability is improved and uneven wear is suppressed to improve wear resistance. The parts of the carcass layer 28 and belt layer 33 overlapping with the main grooves 42 are convexly curved toward the outside in th
6796347 Pneumatic tire including auxiliary grooves September 28, 2004
Auxiliary grooves 28 are formed in land portions 26 so that the wet performance is improved by the increase in the edge factors of the auxiliary grooves 28 and by the water absorbing actions of the auxiliary grooves 28. Since the auxiliary grooves 28 are arranged on the shorter diago

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