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Match Document Document Title
8181683 Pneumatic tire with tread having upper surface sipes and wall surface sipes  
A pneumatic tire has a plurality of upper surface sipes formed on an upper surface of the block and arranged in parallel so as to be spaced in a sipe width direction, and a wall surface sipe...
8181682 Pneumatic tire  
In a tire, a phase difference L1 of transverse grooves 2 is within 25% of the length L of blocks 3, the projected portions 11 are alternately on both sidewalls 10, L2 of the portion 11 is 20% to...
8171969 Pneumatic tire  
A sipe is formed in a block provided in a tread surface, wide portions extending in a sipe length direction are formed in each of a kick-out side and a step-in side of the sipe, and a total of...
8156977 Tire  
A tire is configured having first and second shoulder rows of shoulder tread elements opposite respective first and second interior rows of interior tread elements, separated respectively by...
8151842 Pneumatic tire  
A pneumatic tire is provided which has sufficient total properties and mass productivity of a tire without reducing drainage capability due to narrowed circumferential grooves, achieves high design...
8127811 Sipe blade and tire molded using the same  
A sipe blade for forming a sipe with one end opened and the other end closed in a land portion on a tread surface of a tire includes a front-end portion that forms the closed end of the sipe and a...
8091597 Heavy-duty tire with tread having middle blocks  
A heavy-duty tire comprises two rows of middle blocks (11). The ground contacting face (S) of each middle block is defined as being surrounded with an axially inner longitudinal edge (14i), an...
8047244 Pneumatic tire with tread having radially extending fine grooves  
A pneumatic tire having an improved noise performance without deteriorating the drainage performance and having in a tread portion at least one circumferential main groove 3 which extend...
7987881 Tread comprising relief elements covered by a specific mixture  
A tire tread comprising a plurality of elements in relief (1) comprising a contact face (2) intended to come into contact with the roadway during travel and lateral faces (13, 14, 15, 16), the...
7980279 Heavy duty tire  
A heavy duty tire is vulcanized in a segmented mold having a tread molding surface defined by circumferentially arranged segments. The tread portion is molded by the tread molding surface during...
7980280 Pneumatic tire with tread including ribs having closed sipes  
A pneumatic tire having improved wear resistance, especially improved uneven wear resistance (such as river wear), is offered. The tire that is a rib-pattern tire has five ribs extending...
7958921 Pneumatic tire with tread having sub grooves in blocks, center main groove and subsidiary main grooves  
A pneumatic tire having a designated rotational direction is disclosed, wherein an entire area having a width 85% of a total tire width and a center area having a width 30% of the total tire width...
7950426 Tread blocks having reduced edge stiffness  
A tire comprising a circumferential tread including at least one tread block having at least one edge. The tread block includes at least one void provided therein not more than about 4 millimeters...
7934526 Aircraft pneumatic tire having cap tread layer and base tread layer  
An aircraft pneumatic tire that has deeper grooves without causing deterioration in the heat resistance of a top tread and thereby can increase the number of landings per tread is provided. At...
7926528 Transverse tread groove profile  
A tire tread comprising a plurality of grooves opening on to a running surface, each groove having an average orientation and being defined by facing walls, these walls being connected together by...
7918256 Heavy duty tire having ground contacting face at 70% and 100% maximum tire load  
A heavy-duty tire having a tread portion improved in the shoulder wear is disclosed. Under the maximum load condition[W100], the tread portion has a ground contacting face G[W100] having...
7900668 Pneumatic tire with tread including gently slant grooves having two different inclination angles  
In a pneumatic tire having excellent drainage property and performances on snow, a central main groove 2 and a side main groove 4 and first and second gently slant grooves 5, 6 are arranged in a...
7891391 Tire with tread having an outer cap layer and underlying transition layer containing at least one of depolymerized rubber, pre-cured rubber and coal dust  
The invention relates to a tire having a lug and groove configured rubber tread having an outer rubber cap layer with a running surface and an underlying specialized transition rubber layer. The...
7882875 Pneumatic tire with tread having bottom raising portions  
A pneumatic tire having shoulder blocks defined on a shoulder side of the tread surface by lateral grooves extending in the widthwise direction of the tire beyond a ground contact end of the tire,...
7878228 Heavy-duty tire with tread having closed sipes and edge sipes in ribs  
A heavy-duty tire comprises a tread portion provided with at least three circumferentially continuously extending ribs divided by at least two circumferential grooves extending straight in the tire...
7874332 Pneumatic tire with tread gauge of 95 mm or more having circumferential thin grooves, crosswise thin grooves and sub-thin grooves being closed at time of tread contact of fixed load  
A pneumatic tire includes a column of center blocks (18) partitioned, on a tread center region, by circumferential thin grooves (14) formed along a tire circumferential direction and crosswise thin...
7870881 Tyre for medium/heavy transport vehicles  
A method for reducing tire microsliding includes defining a rotation point and rotating a cross section profile about it. A cross section of a radially-external reference profile of a tread band...
7861755 Pneumatic tire with tread having middle rib, middle lateral grooves, assistant grooves and lateral narrow grooves  
A pneumatic tire includes a tread surface having a middle rib defined by a first circumferential groove and a second circumferential groove in its center region. Middle lateral grooves, that...
7836926 Pneumatic tire with rib having widthwise sipes and circumferential sipe  
A circumferential sipe extends continuously in the circumferential direction of the tire in the center region of the tread surface section of a rib defined between circumferential grooves....
7819153 Tire including concave recesses in a circumferential tread  
A tire having an equatorial plane and a circumferential tread is provided. The tread includes at least one recess defined by at least one concave surface having a plurality of sipes formed therein....
7814951 Pneumatic tire having tread including convexly curved fine grooves  
A pneumatic tire which can enhance performance on snow while assuring performance in wet or dry condition is provided. A plurality of inclined lateral grooves 16 which extend from the tread edge...
7802596 Pneumatic tire with tread having center land and assistant grooves  
There is provided a pneumatic tire capable of improving on-snow performance on a snowy road surface including a sherbet-like snowy road surface without deteriorating on-ice performance. An...
7784509 Pneumatic tire  
A pneumatic tire comprises a tread portion provided with axial grooves opened at a tread edge and a circumferential groove adjacent to the tread edge, wherein each of the axial grooves is provided...
7779876 Reinforced blade for use in a vulcanization mold to form a sipe in a tire  
A reinforced blade for use in a tire vulcanization mold is provided. The reinforced blade, having a thickness of less than 0.030 inches, is configured to form a sipe in a tread of a tire in the...
7770619 Pneumatic tire with tread having lateral grooves and sub grooves  
Provided is a pneumatic tire in which left- and right-side lateral grooves extend between first main grooves and second main grooves, and in which left- and right-side sub grooves extend halfway...
7762297 Heavy duty pneumatic tire  
It aims to provide a heavy duty pneumatic tire with block patterns and capable of improving deflected wear resisting performances without sacrificing wet grip performances or on-snow performances...
7762296 Agricultural vehicle tire  
This invention provides a tire for agricultural vehicles that employs a tread design having a flattened contact surface across the width and a plurality of curved lugs that alternately extend from...
7739905 Method of estimating a height of water in contact with a tire on a road  
A method of estimating the height of water (hw) that is present on a wet ground of a road and that is in contact with a tread of a tire of a vehicle travelling on this wet road utilizes one or more...
7726368 Pneumatic tire with tread having shallow groove extending between zigzag sipes  
A pneumatic tire includes a shallow groove provided between zigzag sipes adjacent in the circumferential direction of the tire, which can reduce production cost of the mold, facilitate trimming...
7647958 Pneumatic tire with tread having inclination grooves  
A pneumatic tire having a rotation direction specified in one direction. The tread surface has a main groove extending on the equatorial plane of the tire, right and left first inclination grooves...
7631675 Pneumatic tire with tread having circumferential grooves and arcuate grooves  
Provided is a pneumatic tire in which improvement is achieved in a wet performance and reduction in vehicle exterior noise while ensuring a dry performance. The pneumatic tire has a designated...
7604030 Pneumatic tire with tread having rib shaped land section, lug grooves and sipes  
A pneumatic tire 10a including in a tread at least two circumferential major grooves 20a, 21a, 22a, and 23a extending in a tire circumferential direction and a rib-shaped land section formed, the...
7597127 Tire with tread including circumferential grooves having generally sinusoidal contour  
Tire having a tread pattern with superior performance characteristics. The tread pattern includes ribs and circumferential grooves which are at least one of tapered and/or generally V-shaped. The...
7562683 Pneumatic tire with tread having blocks and bridge portions  
It is an object of the present invention to provide a pneumatic tire capable of securing rigidity of a tip end of a block, and effectively preventing deviated wear of a tread surface. In a tread...
7559348 Tire with rubber tread of circumferential zones with graduated physical properties  
The invention relates to a tire having a rubber tread comprised of cap/base construction where the tread cap layer provides the running surface of the tread and the tread base layer underlies the...
7546861 Tire with tread having crossed configuration sipe  
A tire has a tread with a plurality of ground engaging tread elements. In at least one of the tread elements is a sipe having a depth in the radial direction of the tire. The sipe has a crossed...
7543616 Heavy duty tire with tread portion having three longitudinal main grooves  
A heavy duty tire has a tread portion 2 which is divided into five inner, intermediate and outer rib-like land portions R1, R2, R2, R3 and R3. The inner rib-like land portion R1 is virtudally...
7506676 Pneumatic tire with tread having V-shaped transverse grooves  
A tread surface the tire rotational direction of which is specified in one direction includes a first main see-through groove extending in the circumferential direction of the tire in a region of...
7500500 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...
7484543 Tire with tread having continuous rib  
A tyre for a motor car includes a tread and two shoulders. The tread includes at least one circumferential row of blocks disposed between first and second circumferential grooves. Each of the...
7484542 Tire tread with sipes having tie bars  
A tire tread has at least three rows of tread elements, each tread element in the at rows has at least one sipe and at least one sipe in each tread element row has a tie bar therein. Each tie bar...
7481257 Pneumatic tire and tire mold  
A pneumatic tire is cured and molded by a sectional type tire mold including an annular side mold section having a tread forming surface for forming a tread surface, the side mold section...
7469731 Heavy-duty tire having ground-contact surface shape  
In a ground-contact surface shape of a tire, when a tangent angle formed between an axial direction of the tire and a tangent X at each point P on a profile line of the tire is defined as θ, a ...
7464738 Tyre for a vehicle wheel including zigzag circumferential grooves and blind transverse cuts  
A tire for a wheel of a vehicle includes a carcass, a belt structure, and a tread. The tread pattern includes at least two circumferential grooves and at least three circumferential ribs. The...
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....
Matches 1 - 50 out of 359 1 2 3 4 5 6 7 8 >