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| Number | Title | Issue Date |
| 7360569 | Pneumatic tire with tread including circumferential rib region, block regions and sipes It is a subject to improve wet performances and noise performances while restricting degradations in dry performances, and for solving this subject, the pneumatic tire is comprised of a tread grounding surface that is partitioned into four to five regions by three t... | 04/22/2008 |
| 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 |
| 7249622 | Tire with deep tread grooves A tire is manufactured on standard tire building equipment and cured in standard curing presses. The tire tread has at least one deep circumferentially extending groove. Within the groove is a separately assembled ring. The ring may be fitted into the deep groove af... | 07/31/2007 |
| 7234497 | Tyre for motorcycle A tire for a motorcycle wherein the radius of curvature (R1) of a corner portion on one side (an inside in an axial direction) of a groove of the tire is smaller than a radius of curvature (R2) of the other corner portion; the radii of curvature (R1... | 06/26/2007 |
| 7201197 | Tire/wheel assembly A tire/wheel assembly includes a wheel having a rim, a pneumatic tire fitted to the rim of the wheel and a run-flat support member, the pneumatic tire having a tread surface and a hollow space, the tread surface having circumferential grooves extending in a circumfe... | 04/10/2007 |
| 6977020 | Method of mounting a pneumatic radial tire In the method of mounting a pneumatic radial tire comprising a spiral belt and a pair cross belt members arranged in parallel to each other at both sides of an equational plane of the tire and at a given opening space onto a vehicle body, the tire is mounted as a fr... | 12/20/2005 |
| 6971425 | Tire for high-performance vehicles and premoulded tread band having an asymmetrical pattern A tire for a vehicle wheel includes a carcass structure, a belt structure, and a tread band. The tread band pattern includes a central zone and two axially-opposite shoulder zones. The central zone is delimited between axially-inner circumferential grooves and inclu... | 12/06/2005 |
| 6929044 | All-terrain vehicle tire An All Terrain Vehicle Tire (10) for the drive axle positions has a tread (12) having three circumferentially continuous channels (61 62, 63). Two of the channels (62, 63) divide the elongated lugs (40, 42) into an axially inner po... | 08/16/2005 |
| 6918420 | Pneumatic tire including groove bottom rib A pneumatic tire comprises a tread portion provided with at least one wide circumferential groove, the wide circumferential groove extending continuously in the tire circumferential direction and having a groove width GW of not less than 5% of the ground contacting ... | 07/19/2005 |
| 6796350 | Vehicle tire having non-uniformly profiled tread with respect to its center A vehicle tire having a non-uniformly profiled tread with respect to its center, with a circumferential extending superwide groove having a width of at least 30 mm provided in one half of the tread and two further circumferential grooves which are narrower in compar... | 09/28/2004 |
| 6668887 | Vehicle tire with reinforcement beneath overwide circumferential tread groove A vehicle tire is described having at least one carcass ply extending between bead regions, a tread region (1) and a belt arrangement (3) disposed between the carcass and the tread as well as a tread profile provided in the tread region having at least on... | 12/30/2003 |
| 6656300 | High performance tire for vehicles A very high performance tire (1, 101) for vehicles comprises a tread (14) provided with a plurality of transversal grooves (15) circumferentially distributed along the tread (14) in groups alternately extending from opposite shoulder zones (F, G) of the t... | 12/02/2003 |
| 6601624 | Tread groove noise diffusers A tire tread comprises an intermediate portion disposed between two shoulder portions. The tire tread has an expanded void area with a width and length of 1.2 to 5 times the average width of a non-circumferential groove in the tread. In the illustrated em... | 08/05/2003 |
| 6530404 | Runflat all terrain tire An all terrain vehicle tire (10) has an annular tread (12) and a casing (11) radially inward of the tread (12). The tread (12) has a plurality of tread lugs (92, 94) and a central rib (95). The plurality of tread lugs (92, 94) are disposed on each tread h... | 03/11/2003 |
| 6505661 | Pneumatic tire having wide groove having two longitudinal ribs, intermediate ribs and lateral ribs A pneumatic tire comprises a tread portion provided with a wide groove having a bottom width of not less than 20 mm. The wide groove is provided on the groove bottom with at least one longitudinal rib extending in the longitudinal direction of the wide gr... | 01/14/2003 |
| 6499520 | Pneumatic tire with wide central groove A pneumatic tire has a circumferentially continuously extending wide groove having a width of from 35 to 45 mm disposed in a tread center. A part on each side of the wide groove, which is defined as extending at least 10 mm axially outwards from the groov... | 12/31/2002 |
| 6450223 | Pneumatic tire having improved wet traction A pneumatic tire having improved wet traction has two annular aquachannels. The tire has a wide, substantially square footprint, a distinctive tread pattern, and a new tread compound, and exhibits good QGL wet traction in addition to excellent hydroplanin... | 09/17/2002 |
| 6443199 | Footprints for nonrotatable automobile and light truck tires A pneumatic radial tire combination for four-wheeled automobile or light truck vehicles. The tire combination has a pair of front steer position tires and a pair of rear position tires. The front steer position tire has a footprint when the tire is normal... | 09/03/2002 |
| 6439284 | Tread for a pneumatic tire including aquachannel A tread 2 for a pneumatic tire 1 has a central portion defining two circumferentially extending center ribs 22, 23 having an axial width RW, and RN2 ranging from 5% to 25% of the tread width TW. The centermost circumferentially extending groove... | 08/27/2002 |
| 6374883 | Aircraft tire with two aquachannels An aircraft tire with two aquachannels (14) provides a wide band area (17) in the central portion of the tread for improved wear properties. The aquachannels each comprise 4.5% to 7% of the tread width based on the design tread width of the tire.... | 04/23/2002 |
| 6347653 | Heavy duty pneumatic tire including lug grooves and shallow circumferential groove A heavy duty pneumatic tire comprises a tread portion, a plurality of lug grooves formed in the tread portion so as to extend from a tread end toward an equator of the tire, and a central land portion formed between two circumferential lines passing throu... | 02/19/2002 |
| 6340041 | Pneumatic tire including two wide circumferential grooves A pneumatic tire including a tread portion provided with two circumferential grooves to divide the tread portion into a pair of shoulder parts and a central part therebetween, each of the circumferential grooves has such a relatively wide width that the m... | 01/22/2002 |
| 6305450 | Tire with specified belt profile in the absence of load and inflating pressure A tire (1) for motor-vehicle wheels comprises a tread band (10) and a belt structure (6), the tread band being molded with a raised pattern having a circumferential groove (11). In the absence of load and inflating pressure, the tire is characterized in t... | 10/23/2001 |
| 6302174 | Pneumatic tire A pneumatic tire is provided in the tread center region with a wide main groove extending continuously in the tire circumferential direction, the main groove divides the tread into two lateral parts, each of the lateral parts is provided with no groove ex... | 10/16/2001 |
| 6263933 | Industrial service agricultural tire A pneumatic agricultural tire (20) for an industrial type tractor or like vehicle has a plurality of central lugs (60) and a plurality of shoulder lugs (40, 50). The plurality of central lugs (60) are arranged in a circumferentially continuous row and ext... | 07/24/2001 |
| 6209602 | Industrial service agricultural tire A pneumatic agricultural tire 20,200 for an industrial type tractor or like vehicle has a plurality of central lugs 50 and a plurality of shoulder lugs 40. The plurality of central lugs 50 are arranged in a circumferentially continuous row 60 and extend a... | 04/03/2001 |
| 6176284 | Pneumatic tire A pneumatic tire having a block type tread pattern improved in stone trapping, which comprises a tread portion being provided with a mesh of grooves to define a plurality of blocks consisting of shoulder blocks adjacent to the tread edges and central bloc... | 01/23/2001 |
| 6170546 | Heavy duty pneumatic tire including variable width grooves and constant width grooves A heavy duty pneumatic tire comprises a tread portion which is provide with wide circumferential grooves having a width Wm1 of 4.0 mm to 20.0 mm and narrow circumferential grooves having a width Wm2 of not less than 2.0 mm but less than 4.0 mm, and each r... | 01/09/2001 |
| 6119745 | Pneumatic tire including only one wide groove A pneumatic tire has a tread portion with one circumferential wide groove extending continuously in the circumferential direction. A centroid of the cross-section of the circumferential wide groove deviates from the tire's equatorial plane so as to divide... | 09/19/2000 |
| 6105643 | On/off road radial pneumatic light truck or automobile tire An on/off road radial pneumatic light truck or automobile tire has a tread with at least one wide groove having an average width of at least 7% of the tread width. At least two axially adjacent rows of traction elements are separated by the wide groove. T... | 08/22/2000 |
| 6003575 | Pneumatic tire including sipes A pneumatic tire comprises an improved tread portion provided with blocks, each block provided with a sipe, the sipe extending across the block to have a first open end and a second open end, the sipe comprising three components forming a generally Z-shap... | 12/21/1999 |
| 6000451 | Pneumatic tire including at least one projection A pneumatic tire having a block type tread pattern improved in stone trapping, which comprises the tread portion provided with a mesh of grooves to define blocks, each block surrounded by at least one projection standing out from the groove bottom leaving... | 12/14/1999 |
| 5957179 | Pneumatic tire having improved wet traction A directional pneumatic tire having improved wet traction has an annular aqua channel and lateral grooves which direct water from the footprint to the shoulder area of the tire to help prevent hydroplaning. The aqua channel has an extended U-shape wherein... | 09/28/1999 |
| 5954107 | Pneumatic radial tire A pneumatic radial tire has a tread pattern having a pair of straight main grooves each having a width equal to 8-13 percent of a ground contact width W of the tire and extending in parallel on opposite sides of an equator of the tire, a plurality of lug ... | 09/21/1999 |
| 5837074 | Pneumatic tire A pneumatic tire with an improved tread portion capable of reducing a pass-by noise with improving wet performances is disclosed, wherein a central region Y1 of the tread between a pair of first circumferential lines X1 is provided with a wide circumferen... | 11/17/1998 |
| 5810953 | Pneumatic tire including two grooves and two rubber parts A pneumatic tire has a tread part with two circumferential grooves continuously extending in the circumferential direction in either side of the tire's equator so as to divide the tread part into a pair of shoulder parts and a central part. The central pa... | 09/22/1998 |
| 5688342 | Pneumatic tire having ground contacting area A pneumatic tire has a tread part with two wide circumferential grooves extending in either side of the tire's equator so as to divide the tread part into a pair of shoulder parts and a central part. The central part has a surface utilizing successive con... | 11/18/1997 |
| 5685927 | Run-flat tire with wet handling design A run-flat radial ply pneumatic tire 10 has a carcass structure reinforced with pairs of elastomeric sidewall fillers 42,46,48 and at least three bead cores 26,26' and 37. At least one bead core 37 lies axially between the lateral edges of the tread 12 an... | 11/11/1997 |
| 5679185 | Pneumatic tire A pneumatic tire having a tread portion with a convex profile, a pair of axially spaced bead portions, and sidewall portions extending therebetween. The tread portion is provided with a pair of circumferentially extending continuous grooves defining groov... | 10/21/1997 |
| 5665184 | Heavy duty pneumatic tire A heavy duty pneumatic tire, in which uneven tread wear is controlled, has a tread portion provided with a pair of main circumferential grooves so as to divide the tread portion into a pair of shoulder lands between tread edges and the main circumferentia... | 09/09/1997 |
