Abstract: A tire information detection device that detects tire information including at least one of wear, deformation, road surface state, ground contact state, presence/absence of failure, travel history, load state, or frictional coefficient, includes at least one detection unit disposed on a tire inner surface, a power supply unit to supply power to the detection unit, a position information detection unit to detect position information of the tire or a vehicle, an additional information acquisition unit to acquire additional information associated with the position information, a determination unit to determine whether a current position specified based on the position information is included in an area that satisfies a determination condition extracted from the additional information, and a control unit to control measurement of the detection unit based on a determination result from the determination unit.

Abstract: In a pneumatic tire including a tread portion extending in a tire circumferential direction and having an annular shape, a pair of sidewall portions respectively disposed on both sides of the tread portion, a pair of bead portions each disposed on an inner side of the pair of sidewall portions in a tire radial direction, and a transponder embedded, a composite sheet that includes a dielectric forming a substrate and a conductor periodically disposed on the dielectric and functions as an artificial magnetic conductor is disposed on an inner side in a tire width direction of the transponder.

Abstract: A pneumatic tire that includes a tread portion extending in a tire circumferential direction and having an annular shape, a pair of sidewall portions disposed on both tread portion sides, and a pair of bead portions each disposed radially on an inner side of the sidewall portions. A first filler rubber is disposed on an outer circumference of a bead core of each bead portion, a carcass layer mounted between the pair of bead portions, a plurality of belt layers disposed on an outer circumferential side of the carcass layer and turned up from a tire inner to a tire outer side around the bead core. A second filler rubber is disposed on an outer side of the carcass layer in a tire width direction, and a transponder is disposed between the carcass layer and the second filler rubber in contact with the second filler rubber.

Abstract: Included in a pneumatic tire are a tread extending in a circumferential direction and having an annular shape, sidewalls disposed on both sides of the tread, and beads disposed on an inner side of the sidewalls in a radial direction. A bead filler is disposed on an outer circumference of a bead core of each of the beads, a carcass layer is mounted between the beads, a reinforcing layer formed of an organic fiber cord is adjacent to an outer side of the bead filler in a width direction, a height of an upper end of the reinforcing layer is equal to or greater than a height of an upper end of the bead filler, and a transponderis between a position of an outer side in the radial direction by 15 mm from an upper end of the bead core and the upper end of the reinforcing layer.

Abstract: In a pneumatic tire in which a carcass layer is turned up from a tire inner side to a tire outer side around a bead core, the carcass layer is formed of a reinforcing cord made of a polyester fiber cord, elongation at break of the reinforcing cord of the carcass layer ranges from 20% to 30%, and a transponder is disposed between a position of an outer side in a tire radial direction by 15 mm from an upper end of the bead core and a position of an inner side in the tire radial direction by 5 mm from an end of a belt layer.

Abstract: A pneumatic tire is vulcanized using a bladder provided with a coating layer formed of a release agent, and includes a sealant layer disposed on an inner surface of a tread portion in a tire circumferential direction. The amount of silicon of the release agents detected in at least a placement region of the sealant layer by fluorescence X-ray analysis is from 0.1 wt. % to 10.0 wt. %.

Abstract: Provided is a pneumatic tire that can provide improved communication performance of a transponder while ensuring durability of the tire. In a pneumatic tire including a tread portion extending in a tire circumferential direction and having an annular shape, a pair of sidewall portions respectively disposed on both sides of the tread portion, and a pair of bead portions each disposed on an inner side of the pair of sidewall portions in a tire radial direction, a transponder is embedded in one of the sidewall portions, the transponder is covered with a coating layer, a relative dielectric constant of the coating layer is lower than a relative dielectric constant of a peripheral rubber member adjacent to the coating layer, and a total thickness Gac of the coating layer and a maximum thickness Gar of the transponder satisfy a relationship 1.1?Gac/Gar?3.0.

Abstract: In a pneumatic tire including a tread portion extending in a tire circumferential direction and having an annular shape, a pair of sidewall portions respectively disposed on both sides of the tread portion, and a pair of bead portions disposed on an inner side of the pair of sidewall portions in a tire radial direction, a transponder is embedded in one of the sidewall portions extending in the tire circumferential direction, the transponder is covered with a coating layer, a relative dielectric constant of the coating layer is lower than a relative dielectric constant of a peripheral rubber member adjacent to the coating layer, and a shortest distance D from an outer edge of the coating layer to the transponder in a tire meridian cross-section is 0.3 mm or more.

Abstract: In a pneumatic tire with a carcass layer mounted between a pair of bead portions, a transponder is embedded in an outer side of the carcass layer in the tire width direction, a rubber member having the largest storage modulus at 20° C. of rubber members located on an outer side of the transponder in the tire width direction has a modulus M50out(0° C.) during 50% deformation at 0° C. and a modulus M50out(?20° C.) during 50% deformation at ?20° C. that satisfy a relationship 0.50?M50out(0° C.)/M50out(?20° C.)<1.00, and a rubber member having the largest storage modulus at 20° C. of rubber members located on an inner side of the transponder in the tire width direction has a modulus M50in(0° C.) during 50% deformation at 0° C. and a modulus M50in(?20° C.) during 50% deformation at ?20° C. that satisfy a relationship 0.25?M50in(0° C.)/M50in(?20° C.)<1.00.

Abstract: Provided is a tire information detecting device capable of determining an attachment state of a sensor module based on a measurement value supplied from the sensor module installed in a pneumatic tire and accurately detecting tire information. A tire information detecting device (10) configured to detect tire information including at least one of wear of a tire, deformation of the tire, a road surface state, a ground contact state of the tire, presence of failure of the tire, a travel history of the tire, or a load state of the tire includes at least one sensor module (20) disposed on a tire inner surface and a determination unit (15) configured to determine an attachment state of the sensor module (20) based on a measurement value supplied from the sensor module (20).

Abstract: A pneumatic tire includes: a tread portion extending in a tire circumferential direction and having an annular shape; a pair of sidewall portions disposed on both sides of the tread portion; and a pair of bead portions disposed on an inner side in a tire radial direction of the sidewall portions. The tire is embedded with a transponder covered with a covering layer. The secant modulus of elasticity at 10% deformation at 20° C. of the covering layer is in a range of from 0.5 MPa to 5.0 MP a.

Abstract: A wear-condition-sensing device includes an element configured to generate voltage based on deformation of a tread portion during tire rotation, a voltage detection unit configured to detect the voltage generated by the element, a storage area configured to store waveform data over time of the voltage detected by the voltage detection unit, a calculation unit configured to calculate an index value of voltage change based on the waveform data stored in the storage area, and a determination unit configured to determine a progress condition of wear of the tread portion by comparing the index value calculated by the calculation unit with reference information.

Abstract: Provided are an RFID (radio frequency identification) module and a pneumatic tire in which the RFID module is embedded. An RFID module includes an IC (integrated circuit) substrate that stores data, an antenna that transmits and receives data, and a covering layer that covers the antenna. The covering layer contains calcium carbonate, and a relative dielectric constant of the covering layer is 7 or less.

Abstract: A wear state detection device includes an element configured to generate voltage based on deformation of a tread portion during tire rotation, a voltage detection unit configured to detect the voltage generated by the element, a speed detection unit configured to detect vehicle speed or tire rotation speed, a storage area configured to store waveform data over time of the voltage detected by the voltage detection unit together with the vehicle speed or the tire rotation speed detected by the speed detection unit, a calculation unit configured to calculate frequency of exceedance of a predetermined threshold value based on the waveform data in a predetermined speed range and a predetermined time period stored in the storage area, and a determination unit configured to determine a progress condition of wear of the tread portion based on the frequency of exceedance of the predetermined threshold value calculated by the calculation unit.

Abstract: Provided is a pneumatic tire. A transponder is embedded in an outer side in a tire width direction of a carcass layer, the transponder is covered by a covering layer, and a storage modulus E?c at 20° C. of the covering layer and a storage modulus E?out at 20° C. of a rubber member having the largest storage modulus at 20° C. of rubber members located on an outer side in the tire width direction of the transponder satisfy the relationship 0.1?E?c/E?out?1.5. Further, the storage modulus E?c at 20° C. of the covering layer and a storage modulus E?in at 20° C. of a rubber member having the largest storage modulus at 20° C. of rubber members located on an inner side in the tire width direction of the transponder satisfy the relationship 0.03?E?c/E?in?1.50.

Abstract: Provided is a pneumatic tire. A transponder is embedded on an outer side in a tire width direction of a carcass layer, and the tan ?out (?20° C.) at ?20° C. of a rubber member having the largest storage modulus at 20° C. of rubber members located on the outer side in the tire width direction of the transponder is in the range of from 0.1 to 0.7. Further, the transponder is embedded on the outer side in the tire width direction of the carcass layer, and the tan ?in (?20° C.) at ?20° C. of a rubber member having the largest storage modulus at 20° C. of rubber members located on an inner side in the tire width direction of the transponder is in the range of from 0.1 to 0.7.

Abstract: Provided is a pneumatic tire that can provide improved transponder durability while ensuring tire durability. The pneumatic tire includes: a tread portion (1) extending in a tire circumferential direction and having an annular shape; a pair of sidewall portions (2) disposed on both sides of the tread portion (1); and a pair of bead portions (3) disposed on an inner side in a tire radial direction of the sidewall portions (2). The tire is embedded with a transponder (20) covered with a covering layer (23). A glass transition temperature (Tg) of the covering layer (23) is in a range of from ?70° C. to ?45° C.

Abstract: A pneumatic tire is provided. A transponder is embedded in an outer side of a carcass layer in a tire width direction, a rubber member having a largest storage modulus at 20° C. of rubber members located on an outer side of the transponder in the tire width direction has a storage modulus at 0° C. E?out(0° C.) and a storage modulus at ?20° C. E?out(?20° C.) that satisfy a relationship 0.50?E?out(0° C.)/E?out(?20° C.)?0.95, and a rubber member having a largest 20° C. storage modulus of rubber members located on an inner side of the transponder in the tire width direction has a storage modulus at 0° C. E?in(0° C.) and a storage modulus at ?20° C. E?in(?20° C.) that satisfy a relationship 0.50?E?in(0° C.)/E?in(?20° C.)?0.95.

Abstract: An object of the present invention is to provide a tire sealant and a tire repair kit that exhibit excellent injectability. Provided is a tire sealant including a natural rubber latex, a synthetic resin emulsion, an anti-freezing agent, a surfactant, and a chelating agent, wherein the content of the chelating agent is 0.1 mass % or greater.

Abstract: A pneumatic tire that is vulcanized using a bladder provided with a coating layer comprising a release agent, the noise absorber being fixed to the inner surface of the tread portion along the tire circumferential direction via the adhesive layer, and the amount of silicon in the release agent detected by X-ray fluorescence analysis is 0.1 wt. % to 10.0 wt. % at least in the fixation region for the noise absorber.