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KABUSHIKI KAISHA BRIDGESTONE

KABUSHIKI KAISHA BRIDGESTONE Patent applications
Patent application numberTitlePublished
20120111464METHOD FOR MANUFACTURING BASE TIRE, CURING MACHINE, AND BASE TIRE - A method for manufacturing a base tire ensuring a cure-molding of a green tire therefor without overcure or undercure in the thin-walled shoulder portions of the tread region and the bead regions, a curing machine that preferably enables the base tire manufacturing method, and a base tire thus manufactured are provided. To that end, a base tire is enclosed within a curing mold, the side regions of the base tire are heated by a first heating means, the tread region of the base tire is heated by a second heating means, and a cure-molding is performed such that the amount of heat given to the tread region by the second heating means is smaller than the amount of heat given to the side regions by the first heating means.05-10-2012
20120092149TIRE INSPECTION APPARATUS - A inspection apparatus arranged with a plurality of cameras located at relatively displaced circumferential positions and set for the respective shooting positions different from each other in the axial direction of the tire. Thus the images of the inner circumferential surface of the tire are shot by the plurality of cameras as the tire is rotated circumferentially relative to the plurality of cameras. During this operation, markers are inserted at the same time in the images shot by all of the cameras. The images are synthesized using these markers as reference positions in aligning the shot images in accordance with the relative displacements of the cameras in the circumferential direction.04-19-2012
20110316290INTRA-TIRE POWER GENERATING APPARATUS - An intra-tire power generating apparatus capable of producing high power is provided. The apparatus includes rotary magnets and rotary weights, which rotate in response to variations in centrifugal force and circumferential acceleration working on the tire of a running vehicle, and a coil unit, which is located between two rotary magnets facing each other and generates voltages through electromagnetic induction from the rotary magnets. In the apparatus, the rotary magnets and the rotary weights have an identical center line of rotation. The rotary weights are so formed as to have their center of gravity dislocated from the center line of rotation. The rotary magnets are each provided, in the plane orthogonal to the center line of rotation, with an even number of regions adjoining in the circumferential direction around the center line of rotation, the adjoining regions having different magnetic poles from each other. The two rotary magnets facing each other are so configured as to rotate while maintaining the opposition of their respective regions having mutually opposite magnetic poles. And the coil unit has coil windings, each of which is of a tubular shape surrounding a space through which the magnetic flux generated between the mutually opposite magnetic poles of the two rotating rotary magnets passes.12-29-2011
20110288814TIRE APPEARANCE INSPECTION APPARATUS AND METHOD - A tire appearance inspection apparatus and method employing image processing is capable of performing tire appearance inspection with great accuracy. The tire appearance inspection apparatus includes a sectional shape acquiring device for acquiring cross-sectional shapes of a tire in the radial direction along the circumference of the tire, an arc fitting device for fitting an arc to each of the cross-sectional shapes, an arc center position calculating device for calculating the center positions of the arcs, and a sectional shape aligning device for aligning the cross-sectional shapes using the center positions of the arcs for the cross-sectional shapes.11-24-2011
20110188731METHOD AND APPARATUS FOR DETECTING SURFACE UNEVENNESS OF OBJECT UNDER INSPECTION - Minute surface unevenness formed on the surface of an object under inspection is detected, thereby improving the accuracy of an appearance inspection. A target surface in the sidewall region (08-04-2011
20110118989METHOD FOR ESTIMATING TIRE WEAR AND APPARATUS FOR ESTIMATING TIRE WEAR - The degree of tire wear is estimated with constancy and accuracy even when the road surface becomes rough during a vehicular run. The deformation speeds V05-19-2011
20110102811APPARATUS AND METHOD FOR MEASURING CYLINDRICALLY-SHAPED OBJECT AND APPARATUS FOR INSPECTING TIRE APPEARANCE - A measuring apparatus for automatically measuring the height, the dimensions of the inner and outer surfaces, and the shape of a cylindrically-shaped object. The measuring apparatus includes a measuring head vertically moving along a positioning guide supported by a support post integral with a measuring table, a height displacement measuring device, which comprises a laser distance meter provided on the measuring table, and an arithmetic processing unit. The measurement starts as the measuring head is raised by a weight from a measuring start position of the measuring table. The inner and outer surfaces of a tire are measured based on the measurements by an inner surface measuring device provided with three laser distance meters mounted to the measuring head and an outer surface measuring device having a laser distance meter and the displacement change measurement of the measuring head by the height displacement measuring device. Required dimensional values are calculated from the measured values, using the arithmetic processing unit.05-05-2011
20110050213BELT MONITORING SYSTEM - A belt monitoring system which can accurately monitor the condition of a conveyor belt by correcting it for the effect of belt deviation. Wear detecting magnets (03-03-2011
20110011505PNEUMATIC TIRE - A pneumatic tire capable of reducing air column resonance arising from circumferential grooves without changing the shape of unilaterally open-ended lug grooves. Lug grooves 01-20-2011
20100296738METHOD AND APPARATUS FOR INSPECTING TIRE SHAPE - A method and apparatus for accurately detecting the shape of a tire side by performing an image processing of removing a knurled region from the tire side. An actual image of a tire side having a knurled region obtained by a light-section method is Fourier-transformed into a Fourier-transformed image by a Fourier-transformed image creating unit of an image processing means. Cross-shaped peaks appearing discretely at predefined frequency intervals on a straight line in the Fourier-transformed image are identified as peaks attributable to the knurled region by a knurled component identifying unit. The cross-shaped peaks are removed from the Fourier-transformed image by a knurl component removing unit, and the Fourier-transformed image from which the peaks are removed is inverse-Fourier-transformed into an actual image by an inverse-Fourier-transforming unit. And the acceptability of the shape of the tire side is determined using the actual image.11-25-2010
20100294013METHOD FOR MANUFACTURING BRASS-PLATED STEEL WIRE AND APPARATUS FOR DRAWING BRASS-PLATED STEEL WIRE - A wire drawing apparatus (11-25-2010
20100282386PNEUMATIC TIRE FOR TWO-WHEELED VEHICLE - This invention provides a pneumatic tire for a two-wheeled vehicle with improved lateral grip at cornering, controlled tread wear in the shoulder regions, ensured uniformity of wear on the left and the right, and secured heat generation in the tread on an actual vehicle. The pneumatic tire has left and right dissimilar rubber layers (11-11-2010
20100212796PNEUMATIC TIRE - A pneumatic tire (08-26-2010
20100199756METHOD AND APPARATUS FOR DETECTING WEAR OF TIRE - A method and apparatus for detecting the state of wear of the tire tread with accuracy and durability are provided. Acceleration of the inner surface of the tire tread is detected by an acceleration sensor installed in an inner liner region of the tire. From a thus detected time-series waveform of acceleration, an acceleration waveform in the leading edge region including a leading peak which occurs when the block engages with the road surface or an acceleration waveform in the trailing edge region including a trailing peak which occurs when the block disengages from the road surface is extracted. A frequency band value P08-12-2010
20100147062METHOD OF ESTIMATING TIRE CONTACT STATE, TIRE CONTACT STATE ESTIMATING APPARATUS AND TIRE FOR TIRE CONTACT STATE ESTIMATION - Provided is a tire contact state estimating method using a tire for estimating a contact state (06-17-2010
20100065180PNEUMATIC TIRE - A belt reinforcement layer 03-18-2010
20100060443 APPARATUS FOR ESTIMATING TIRE WEAR AMOUNT AND A VEHICLE ON WHICH THE APPARATUS FOR ESTIMATING TIRE WEAR IS MOUNTED - A vehicle velocity detector 03-11-2010
20100043541TIRE EQUIPPED WITH A SENSOR AND A METHOD OF MEASURING STRAIN AMOUNT OF THE TIRE - This invention provides a tire (02-25-2010
20100000811IN-WHEEL MOTOR SYSTEM - A geared motor 01-07-2010
20090266458PNEUMATIC TIRE - On a pneumatic tire provided with a lug-grooved rib 10-29-2009
20090155620BRASS-PLATED STEEL WIRE FOR REINFORCING RUBBER ARTICLES AND METHOD FOR MANUFACTURING THE SAME - Problems to be solved by the invention: It is an object of the present invention to provide a brass-plated steel wire for reinforcing rubber articles capable of surely improving adhesiveness between brass-plated steel wire and rubber and a method for manufacturing the same.06-18-2009
20090133944IN-WHEEL MOTOR SYSTEM - An electric motor 05-28-2009
20090105921ROAD SURFACE CONDITION ESTIMATING METHOD, ROAD SURFACE CONDITION ESTIMATING TIRE, ROAD SURFACE CONDITION ESTIMATING APPARATUS, AND VEHICLE CONTROL APPARATUS - The vibration of a tire 04-23-2009
20090055040METHOD FOR ESTIMATING TIRE SLIP ANGLE AND A TIRE WITH SENSORS MOUNTED THEREIN - Deformation of a tire is measured by a paired sensor 02-26-2009
20090049902METHOD FOR CORRECTING CONCAVE-CONVEX EXHIBITED ON A SURFACE OF A BODY OF ROTATION - Providing a method for correcting a data of irregularity of a surface of a body of rotation with an eccentricity included to a data being not affected by eccentricity.02-26-2009

Patent applications by KABUSHIKI KAISHA BRIDGESTONE