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| Number | Title | Issue Date |
| 7438100 | Pneumatic tire for ice-bound or snow-covered road A pneumatic tire for ice-bound or snow-covered roads, which has fine grooves formed in a tread surface, thereby improving brake and drive performance on ice-bound roads in early periods of wear. This pneumatic tire for ice-bound or snow-covered roads has its tread p... | 10/21/2008 |
| 7422043 | Pneumatic tire with tread having circumferential sub-grooves including at least three raised portions A pneumatic tire is provided, where the rigidity of the blocks formed on the tread surface is increased and an increase in the level of noise when the tread surface is worn can be prevented. In a pneumatic tire where a number of blocks which are separated by a numbe... | 09/09/2008 |
| 7416004 | Pneumatic tire with tread including blocks having open and closed sipes A pneumatic tire comprises a tread portion provided with blocks, the blocks are axially divided by at least one circumferential groove and circumferentially divided by oblique grooves inclined with respect to the tire axial direction towards one direction, and each ... | 08/26/2008 |
| 7404423 | Pneumatic tire with tread including blocks having approximately equal aspect ratios In a pneumatic tire, a block unit includes a center block and side blocks separated by a communication groove. Aspect ratios of the center block and the side blocks are approximately the same. The center block and the side blocks are arranged such that a longitudina... | 07/29/2008 |
| 7392832 | Pneumatic tire having tread blocks with skewed walls A pneumatic tire with an improved balance between noise reduction and hydroplaning resistance as the tread wears. The tread of the pneumatic tire includes skewed tread blocks having walls that, as the tread wears, change the character of the lateral and circumferent... | 07/01/2008 |
| 7377300 | Elastic tire for measuring the grip of a vehicle equipped therewith on a ground An elastic tire according to the invention comprises a tread (1) which comprises at least one unit (3) for measuring the grip of the tire on the ground, the measuring unit (3) being intended to come into contact with the ground on each revolutio... | 05/27/2008 |
| 7367370 | Surface profile of tread design components of a tire tread A tread for a heavy vehicle tire, comprising at least one tread design component (3) delimited by at least two grooves, each component comprising a contact face (4) limited by edges (7, 8); the contact face (4) having, viewed in a cross-s... | 05/06/2008 |
| 7350551 | Motorcycle tire with tread having main blocks and lower height sub blocks A motorcycle tire is provided that is capable of remarkably improving a traction characteristic and an anti-sideslip characteristic for cornering without deteriorating the mud expulsion characteristic especially on a dirt road. In embodiments, a motorcycle tire has ... | 04/01/2008 |
| 7347238 | Pneumatic tire with tread including chamfer portions A pneumatic tire having improved wet performance without sacrificing steering stability. A pair of central circumferential main grooves 14 and a pair of side circumferential main grooves 16 are arranged on a tread 12, to obtain a fundamentally h... | 03/25/2008 |
| 7341083 | Pneumatic radial tire with tread having blocks provided with sipes A wheel tread part 2 of a tread is constituted of a longitudinal main groove 3 formed in a circumferential direction via a center of a width direction, a plurality of longitudinal subgrooves 4 formed on both side parts of the longitudinal main g... | 03/11/2008 |
| 7337816 | Tire tread with circumferential and lateral grooves having asymmetrical cross-section A pneumatic tire for dirt track racing comprising lateral and circumferential grooves forming blocks on the tread surface. The blocks have leading and trailing edge walls. The trailing edge walls of the blocks are buttressed by inclining the walls at an angle of 20Â... | 03/04/2008 |
| 7334619 | Pneumatic tire with blocks having zigzag sipes A pneumatic tire comprising a tread portion 2 having blocks 7 each provided with sipeings 10, wherein each sipeing 10 has an opening having a zigzag portion 11 in its opening edge shape J at a block surface S, and opposing wall sur... | 02/26/2008 |
| 7322391 | Vehicle pneumatic tire having truncated groove A tire including a tread rubber having at least one positive profile. Wherein the positive profile is formed by at least one circumferential groove. Further, the tire includes at least one truncated groove extending into the positive profile from the circumferential... | 01/29/2008 |
| 7311127 | Pneumatic tire with tread having sipes It is a subject to suitably decrease the rigidity of blocks, to generate suitable collapsing of the blocks, to sufficiently exhibit edge effects of sipes, and to improve braking performances and the like in the medium term of wear and thereafter; and for solving thi... | 12/25/2007 |
| 7290578 | Tire tread having a tread block with an undercut design The present invention provides for an improved tire tread having an improved hydroplaning resistance. Specifically, the tread includes one or more tread blocks having one or more walls with an undercut surface to deviate the flow of water from a circumferential groo... | 11/06/2007 |
| 7281554 | Pneumatic tire with tread having blocks including highland portions and convex surface that is smoothly chamfered and defines line edge at the top of block sidewall To provide a pneumatic tire in which noise can be reduced without changing the basic design of the block pattern, a chamfered portion 24 is provided at a tire widthwise-direction outer side end 18A of a leading edge 18A of a block 18. Whe... | 10/16/2007 |
| 7281556 | Pneumatic tire with tread portion having zigzag sipes It is an object of the present invention to improve the running performance on snowy and icy roads, and for this purpose, blocks provided with sipes are formed at a tread portion. The sipes include an open top end that opens at a block surface and a bottom, and a co... | 10/16/2007 |
| 7281555 | Off-the-road tire The invention is to improve wear resistance and resistance to crack growth of an off-the-road tire having a gauge of a tread rubber of 60-200 mm, in which a plurality of widthwise grooves extending substantially in a widthwise direction of the tire are arranged in e... | 10/16/2007 |
| 7270163 | Tyre for a vehicle wheel including specific tread patterns A tire for a vehicle wheel includes a carcass structure, a belt structure associated coaxially with the carcass structure, and a tread band extending coaxially around the belt structure. The tread band includes a relief pattern including at least one row of blocks s... | 09/18/2007 |
| 7270162 | Pneumatic tire with tread surface having blocks with sipes forming meandrous shape A pneumatic tire including sipes that have at least one ends positioned within blocks. The sipes are arranged such that each of the sipes meanders from the one end to the other end thereof to form a meandrous shape, and as the depth of the sipes increases, the meand... | 09/18/2007 |
| 7246644 | Tyre for a vehicle wheel including specific tread patterns Winter tire for vehicle wheels, provided with a tread comprising three circumferential grooves and a plurality of transverse grooves which jointly delimit four circumferential rows of blocks, namely two axially outer shoulder rows and two center rows at the sides of... | 07/24/2007 |
| 7237588 | Pneumatic tire including zigzag sipes A pneumatic tire includes a tread portion provided in a tread face thereof with tread elements each provided with at least one zigzag sipe, a cap tread rubber defining the tread face, and a base tread rubber disposed radially inside the cap tread rubber, wherein the... | 07/03/2007 |
| 7222651 | Tire for preventing rollover or oversteer of a vehicle A tire for preventing vehicle rollover or oversteer comprises a pair of bead portions, a pair of sidewall portions, a tread portion extending between the pair of sidewall portions, and a portion of low friction material positioned along an edge of the tread portion.... | 05/29/2007 |
| 7195044 | Pneumatic tire with tread including biting elements A pneumatic tire with a tread has at least two axially adjacent tread elements, the elements being separated by a groove and each element having opposing lateral sides. Connecting the axially adjacent tread elements is at least one traction biting element. The bitin... | 03/27/2007 |
| 7188650 | Siped tire tread with high transverse stiffness A tire includes a plurality of tread blocks disposed circumferentially around the tire. At least one sipe is formed into at least one of the tread blocks and is defined by first and second confronting sidewalls. The sipe has a cross-sectional profile in a plane gene... | 03/13/2007 |
| 7182113 | Pneumatic tire with tread including protruding portions on wall surface of groove A pneumatic tire 10, in which at least one rib groove 12 extended in a tire circumferential direction is formed on a tread surface portion T of a tread portion 11, and portions 13 discontinuous in terms of rigidity are formed in a circumf... | 02/27/2007 |
| 7134467 | Low net to gross OTR tire A pneumatic off-the-road (OTR) tire has a plurality of central and shoulder lugs. The central lugs are arranged in a circumferentially continuous row and extend across the equatorial plane (EP). Each central lug is similar in shape and orientation relative to each c... | 11/14/2006 |
| 7128111 | Pneumatic tire having shoulder blocks with V-shaped axially inner edge and convexly curved axially outer surface A pneumatic tire which comprises a tread portion with a pair of tread edges, and a tire shoulder extending radially inwardly from one of the tread edges, provided with a curved surface comprising a convex curve, wherein, on a cylindrical surface centered on the tire... | 10/31/2006 |
| 7114540 | Pneumatic tire including tread with main grooves A pneumatic tire includes main grooves 1 extending substantially in a circumferential direction R of the tire, transverse grooves 2 connecting adjacent main grooves, and blocks 3 formed by adjacent main grooves and adjacent transverse grooves. E... | 10/03/2006 |
| 7093630 | Heavy duty radial tire A heavy duty radial tire which is provided with traverse grooves extending between the tread edges and longitudinal grooves extending between the traverse grooves so as to form shoulder blocks arranged along each of the tread edges and inner blocks each disposed on ... | 08/22/2006 |
| 7090735 | Method of compensating for residual aligning torque (RAT) A method for changing the residual aligning torque (RAT) of a pneumatic tire by forming angled sipes in certain of the tread blocks in at least a pair of circumferentially extending ribs, each rib being located on an opposite side of the mid-circumferential plane of... | 08/15/2006 |
| 7077181 | Pneumatic tire including shoulder grooves A pneumatic tire includes a tread portion provided with shoulder blocks in a row along each tread edge. The shoulder blocks are provided in a row divided by a circumferential groove and first shoulder grooves and second shoulder grooves. The first and second shoulde... | 07/18/2006 |
| 7077180 | Pneumatic tire having sipes formed by shifting pitches of zigzag shape Disclosed is a pneumatic tire provided with multiple blocks 6 on a tread 1. A sipe 7 provided on the block 6 is formed by shifting pitches of a zigzag shape 7a on a tread face 1a side of the sipe and a zigzag s... | 07/18/2006 |
| 7048022 | Tire tread with anti-puncture pads A pneumatic tire has a tread designed primarily for off-road activities, comprising large lugs. The tread can be defined as having a central tread width that is divided into a central tread zone and opposing lateral tread zones. The tire also has shoulder regions ex... | 05/23/2006 |
| 7032635 | Pneumatic tire for use on iced and snowed road surfaces A pneumatic tire for use on iced and snowed road surfaces has a tread surface. The tread surface has a plurality of main grooves extending in a circumferential direction of the tire and a plurality of lateral grooves extending in a width direction of the tire. Block... | 04/25/2006 |
| 7025100 | Pneumatic tire including blocks and splitting grooves A pneumatic tire is provided in the tread portion with a circumferential row of middle tread elements, wherein each of the middle tread elements is divided into four elemental blocks having different configurations, by three splitting grooves, and the three splittin... | 04/11/2006 |
| 6986372 | Serrated groove sides in a tire An improved tire tread has tread elements which form a tread pattern exhibiting two or more peripheral grooves and a plurality of transverse grooves extending inward from the outer (ground engaging) surface of the tread. Preferably the transverse grooves extend acro... | 01/17/2006 |
| 6923231 | Tire including blocks and transverse notches A tire for vehicle wheels provided with a tread pattern includes at least one continuous central circumferential groove straddling an equatorial plane of the tire, at least two continuous lateral circumferential grooves having median planes substantially parallel to... | 08/02/2005 |
| 6920906 | Pneumatic tire with sidewall projections A pneumatic tire has an aggressive tread pattern for use on both on-road and off-road vehicles having at least a pair of intermediate ribs and a pair of shoulder ribs providing the ground engaging tread lugs. A plurality of circumferentially extending lug groups are... | 07/26/2005 |
| 6910512 | Pneumatic tire having peripheral protuberant portion on each block An end of a block 18 formed on a tread surface of a tire is chamfered in such a manner that a curvature of a chamfer increases toward the end of the block. Accordingly, a ground contact pressure which usually increases locally at the end of the block 18 | 06/28/2005 |
