About 138 results
https://drivepatents.com/patents/998427 · 12 Sep 2012
Wet performance and partial wear resistance of a tire are improved, and a noise generated during running of the tire is reduced. At a tread portion 2, a plurality of land portions 20, 30, and 40 is defined by circumferential main grooves 10 and 11 extendin...
https://drivepatents.com/patents/999071 · 22 Aug 2012
The structure has profile strips (1,2) which are extended in axial direction of pneumatic tire over the circumference of circumferential grooves (3-5) in radial direction to outside with a ground contact surface forming radially outer surface. The profiled...
https://drivepatents.com/patents/999281 · 15 Aug 2012
The pneumatic tire has a web (12) extended in radial direction to outside by radially outwardly directed web surface and in both directions of extension of transverse groove (9). The groove bottom is provided up to web surface and in circumferential direct...
https://drivepatents.com/patents/1000429 · 11 Jul 2012
A pneumatic tire with good fuel efficiency, drainage performance and uneven wear resistance is provided. A pneumatic tire has a tread surface provided with circumferential main grooves (2a,2b) to define a center region (3) and two side regions (4a,4b). The...
https://drivepatents.com/patents/1000877 · 27 Jun 2012
A pneumatic tire comprises a tread portion, a carcass comprising a carcass ply of cords extending between bead cores in each bead portion, and a belt comprising a belt ply of belt cords arranged on the axially outward of the carcass, wherein the tread port...
https://drivepatents.com/patents/1001212 · 20 Jun 2012
A pneumatic tire comprises, on a tread surface, a circumferential groove (1a-1d) which extends in a tire circumferential direction, a land portion (2-4) which is zoned by the circumferential groove, and a plurality of lug grooves (6) in which one end is op...
https://drivepatents.com/patents/1001205 · 20 Jun 2012
A pneumatic tire comprises a tread portion divided into a crown land region, two middle land regions and two shoulder land regions. The crown land region and middle land regions are each divided into triangular blocks by axial grooves arranged in a zigzag ...
https://drivepatents.com/patents/1001359 · 13 Jun 2012
A pneumatic tire comprising, on a tread portion of the tire, crown main grooves extending circumferentially on both sides of a tire equator, shoulder main grooves extending circumferentially on axial outside of the crown main grooves, a crown rib between t...
https://drivepatents.com/patents/1002080 · 23 May 2012
The tread strip profile comprises transverse grooves (3), which are limited radially inward with a groove base and a groove wall on both sides of the groove base. The groove extends along its extension in the axial direction of the tire with a substantiall...
https://drivepatents.com/patents/1003732 · 4 Apr 2012
In addition to dramatic improvement of on-ice performance, to balance with other performances. A pneumatic tire comprises, in a tread portion 1, at least two block groups G B1 to G B3 whose block number density is within a range of 0.003 pieces/mm 2 to 0.0...