About 67 results
https://drivepatents.com/patents/984719 · 3 Jul 2013
A heavy duty pneumatic tire comprises a tread portion provided with a crown main groove and a middle axial groove. The middle axial groove extends axially outwardly from its axially inner end axially outwardly spaced apart from the crown main groove and in...
https://drivepatents.com/patents/990528 · 22 May 2013
A run-flat tire comprises a tread portion (2) having a left-right asymmetry tread pattern including an inboard tread edge (Tei) and an outboard tread edge (Teo) defining a tread width (Tw) therebetween, a circumferentially extending inner crown main groove...
https://drivepatents.com/patents/991033 · 8 May 2013
The present invention has an object of providing a pneumatic tire having a tread pattern capable of providing both excellent drivability and a high partial wear resistance. The pneumatic tire of the present invention includes, in a tread surface, a compoun...
https://drivepatents.com/patents/995428 · 5 Dec 2012
A land portion of a pneumatic tire 1 comprises a land portion 10 having groove wall 10a a second land portion 20 having a groove wall 20a. The groove walls 10a, 20a meander. A groove width of a main groove 50 changes at a predetermined repetition cycle. Th...
https://drivepatents.com/patents/996373 · 31 Oct 2012
Directional pneumatic tire comprising a tread portion 2, a pair of center circumferential main grooves3 extending on both side of a tire equatorial plane Co, a center land portion 4 between the center circumferential main grooves 3, sipes 5 provided within...
https://drivepatents.com/patents/996709 · 24 Oct 2012
A pneumatic tire comprises a tread portion provided on each side of the tire equator with a land zone defined between two circumferential main grooves, wherein the land zone is provided with axial grooves extending between the main grooves and inclining to...
https://drivepatents.com/patents/1002982 · 2 May 2012
A pneumatic tire reduces the columnar resonance noise of the tire while controlling the lowering of wet performances, wherein four circumferential grooves (2,3) continuously extending in the circumferential direction of the tire are disposed in a treading ...
https://drivepatents.com/patents/1003739 · 4 Apr 2012
The present invention aims to provide a method of designing a resonator more simply by deriving a non-transcendental model formula, and to provide a pneumatic tire having the resonator designed by this method. A method of designing a resonator 1 of a pneum...
https://drivepatents.com/patents/1006420 · 11 Jan 2012
A pneumatic tire comprises a tread (1) provided with at least two circumferential main grooves (2,3,6) and a rib (4) defined in a tread central portion by the circumferential main grooves, wherein an auxiliary groove (5,7,8,9,10) is formed in the tread cen...
https://drivepatents.com/patents/1006852 · 21 Dec 2011
A pneumatic tire comprises a tread portion provided with an asymmetrical tread pattern comprising a pair of crown circumferential grooves (2) defining a crown rib (3) therebetween. The crown rib (3) is provided with: a central narrow circumferential groove...