Abstract: A surface of each of the portions of a pneumatic tire includes a ridge pattern region provided with a plurality of ridges continuously extending in one direction and provided at intervals, a non-ridge pattern region including a smooth surface and not provided with the ridges, and a two-dimensional code including a dot pattern formed from two types of gray scale elements distinguishably formed using surface irregularities. The two-dimensional code is engraved entirely overlapping the ridge pattern region or engraved overlapping the ridge pattern region and the non-ridge pattern region.

Abstract: A sidewall surface of a pneumatic tire includes a region of a smooth surface and a two-dimensional code within the region and provided with a dot pattern including two types of gray-scale elements formed of surface irregularity with respect to the smooth surface. The tire has a cross-sectional height of 80 mm or less along a radial direction from an innermost position of bead cores in the radial direction to a tire maximum outer diameter position, one or more first ridges projecting with respect to the smooth surface and extending in the radial direction are on a surface of the tire between edges on sides of the two-dimensional code in a circumferential direction and positions away from the edges along the circumferential direction by a length of 50% of the two-dimensional code width, and portions within the range other than the first ridges correspond to the smooth surface.

Abstract: Provided is a pneumatic tire. At least one sensor unit including a sensor that acquires tire information is fixed to an innerliner constituting a tire inner surface, and the sensor unit is bonded to the tire inner surface via an adhesive layer in a state where a release agent present in the tire inner surface is removed by cutting at least in a fixing region for the sensor unit.

Abstract: Provided are a pneumatic tire and a method for manufacturing the same. At least one sensor unit including a sensor that acquires tire information is fixed to a tire inner surface via an adhesive layer, and a thickness of a release agent detected by an electron microscope at least in a fixing region for the sensor unit is from 0.1 ?m to 100 ?m.

Abstract: Provided are a pneumatic tire and a method for manufacturing the same. At least one sensor unit including a sensor that acquires tire information is fixed to a tire inner surface via an adhesive layer, and an amount of silicon in a release agent detected by fluorescent X-ray analysis at least in a fixing region for the sensor unit is from 0.1 wt % to 10.0 wt %.

Abstract: A surface of each of the portions of a pneumatic tire includes a ridge pattern region provided with a plurality of ridges continuously extending in one direction and provided at intervals, a non-ridge pattern region including a smooth surface and not provided with the ridges, and a two-dimensional code including a dot pattern formed from two types of gray scale elements distinguishably formed using surface irregularities. The two-dimensional code is engraved entirely overlapping the ridge pattern region or engraved overlapping the ridge pattern region and the non-ridge pattern region.

Abstract: Five land portions on tread surface are demarcated by four main grooves that extend in a tire circumferential direction TC. The five land portions include a center land portion between the first main grooves, two middle land portions between the first main grooves and the second main grooves, and two shoulder land portions located toward the outside of the second main grooves in the tire width direction, and sub-grooves and sipes are formed on the land portions. The total groove surface area ratios of the sub-grooves and the sipes in the land portions are different in the center land portion and the shoulder land portion as compared to the middle land portion, with the total groove surface area ratio being lower in the center land portion and the shoulder land portion and being higher in the middle land portion.

Abstract: Five land portions on tread surface are demarcated by four main grooves that extend in a tire circumferential direction TC. The five land portions include a center land portion between the first main grooves, two middle land portions between the first main grooves and the second main grooves, and two shoulder land portions located toward the outside of the second main grooves in the tire width direction, and sub-grooves and sipes are formed on the land portions. The total groove surface area ratios of the sub-grooves and the sipes in the land portions are different in the center land portion and the shoulder land portion as compared to the middle land portion, with the total groove surface area ratio being lower in the center land portion and the shoulder land portion and being higher in the middle land portion.

Abstract: A robot control method of the playback type and an apparatus for using the method in which position data and data regarding velocity are taught at a sequence of points for a work program, and a servo system is driven by the use of the taught data to playback or repeat the work program. Phase angles which increase as the robot progresses through the sequence of teaching points are taught as the data regarding the velocity of the work program. At playback, a reference phase angle computed on the basis of a previously-set playback cycle time for the work program. The reference phase angle increases at an advance velocity which decreases with an increase in the playback cycle time. During operation, the reference phase angle is compared with one of the taught phase angles, and the corresponding taught position data is outputted to the servo system when the reference phase angle exceeds the taught phase angle.

Abstract: An industrial robot system comprising a plurality of robots for conducting a work in cooperation with each other. A system clock is provided in the system, and clocks are provided in the respective robots. These clocks are counted up at the same cycle time, and are set for original points of the respective robots, which are the waiting positions thereof, and the clock values of the robots located in the respective positions during the drive operation. During the drive of the system, the system clock is advanced by adding a predetermined increment value thereto, and the respective robots held under the enabling condition, start the operations by advancing the robot clocks by adding the same increment value as that of the system clock.

Abstract: An industrial robot system comprising a single working machine, and a plurality of robots arranged so as to transfer a work to and from this working machine. The operation of these robots and the working machine is controlled by a single control unit, and the operation of all the robots is controlled in a realtime manner in synchronism with the operation of the working machine, thereby ensuring the smooth operation of the overall system while obviating waiting time of each robot and the working machine without using a conventional mutual interlock system.