Tokyo, Japan
Tokyo, Japan

The Bridgestone Corporation is a multinational auto and truck parts manufacturer founded in 1931 by Shojiro Ishibashi in the city of Kurume, Fukuoka, Japan. The name Bridgestone comes from a calque translation and transposition of ishibashi, meaning "stone bridge" in Japanese.Production facilities belonging to the Bridgestone Group number 141 in twenty-four countries, as of the end of 2005. Wikipedia.


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Metallic complexes having indenyl ligands can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes. Embodiments of the catalyst system can provide interpolymers that include polyene mer and from 40 to 75 mole percent ethylene mer, with a plurality of the ethylene mer being randomly distributed. The catalyst system also can be used in solution polymerizations conducted in C5-C12 alkanes, yielding interpolymers that include at least 10 mole percent ethylene mer.


A loader device includes a support pedestal movable over a range of longitudinal travel along a longitudinal axis, a support carriage movably mounted to the support pedestal, a loader actuator, and a dismount actuator. The support carriage is movable over a range of vertical travel along a normal axis, which is perpendicular to the longitudinal axis. The support carriage has a support arm adapted to support a tire casing. The loader actuator and dismount actuator are respectively adapted to selectively move: (1) at least a portion of a tire casing supported upon the support carriage in a loading direction along the longitudinal axis off of the support arm onto the expandable rim hub and (2) at least a portion of a tire casing supported upon the expandable rim hub in an opposing unloading direction off of the expandable rim hub and onto the support arm of the loader device.


Patent
Bridgestone | Date: 2017-01-11

Various embodiments of a tire tread having at least one sipe comprising an S-shaped geometry are disclosed.


Patent
Bridgestone | Date: 2017-05-17

In the present invention, block segment sections (55) and outer rib-shaped sections (75) are arranged in an outer shoulder land section (24). An end portion of one of vertical groove sections (51) in one of L-shaped groove sections (44), which is at the other side in the tire circumferential direction communicates with one of the horizontal groove sections (45) in another L-shaped groove section of the L-shaped groove sections (44), which is adjacent to the L-shaped groove section (44) in the tire circumferential direction, via one of second communicating sections (52). In addition, positions of first communicating sections (47) and the second communicating section (52) in the tire width direction are different from each other.


Patent
Bridgestone | Date: 2017-02-03

Provided herein are methods for the removal of organic solvents from wet bagasse. The use of the methods result in dried bagasse that contains no more than 1 weight percent organic solvents.


Patent
Bridgestone | Date: 2017-05-24

Heat radiation of circumferential direction grooves on a plurality of blocks on shoulder portion sides is enhanced. A block 41 has a first wall surface 42 formed from a position where a lateral groove 14 is opened in a first circumferential direction groove 11 toward an upstream side G of an air flow, a second wall surface 43 formed from a position where the lateral groove 14 is opened in a second circumferential direction groove 12 toward the upstream side G of the air flow, and a block corner portion 44 formed at a position where the lateral groove 14 is opened in the first circumferential direction groove 11. A virtual surface 46 obtained by extending the first wall surface 42 of the block 41 on the upstream side G intersects with the block corner portion 44 of the block 41 on the downstream side H or passes through a position in the first circumferential direction groove 11 on the tread center portion 3 side of the block corner portion 44. A groove width W of the second circumferential direction groove 12 gradually increases toward the downstream side H of the air flow on the second wall surface 43.


In order to provide a method for accurately correcting surface shape data of an annular rotating body, in correcting three-dimensional shape data on a surface of the annular rotating body, a reference line is set along the surface to be detected of the annular rotating body, and then reference equiangular division points, which divide the reference line by equal angles, are set. Next the circumferential length of the reference line is calculated from the distance between adjacent reference equiangular division points, and a plurality of reference equidistant division points, which divide the reference line into equal lengths, are set on the reference line, using the circumferential length. Then interpolation points for correction of the data on the surface to be detected of the annular rotating body are set at positions a preset distance apart in the radial direction of the rotating body from the reference equidistant division points. Then three-dimensional shape data at the interpolation points are calculated using the three-dimensional data to be corrected. Finally the interpolation points are moved onto a perfect circle centered about the rotational center and having the same circumferential length as the aforementioned circumferential length, using the aforementioned circumferential length and the distance.


Metallic complexes having indenyl ligands can be used as an ingredient of a catalyst system. The catalyst system can be used in polymerizations of ethylenically unsaturated hydrocarbon monomers that include both olefins and polyenes. Embodiments of the catalyst system can provide interpolymers that include polyene mer and up to about 40 mole percent ethylene mer. The catalyst system also can be used in solution polymerizations conducted in C5-C12 alkanes.


Patent
Bridgestone | Date: 2017-05-31

To improve the rigidity of a join portion of a tire frame member. A tire (10) includes: a toroidal tire frame member (12) formed of resin and is formed by joining a plurality of tire pieces (12A) together in a tire width direction; a reinforcement belt layer (18) adhered to the tire frame member (12), and that extends in the tire circumferential direction so as to cover a join portion between the plurality of tire pieces (12A); and tread rubber (16) provided at an outer side in the tire radial direction of the tire frame member (12) and the reinforcement belt layer (18), and the reinforcement belt layer (18) includes a cord (34) that straddles the join portion between the tire pieces (12A).


Patent
Bridgestone | Date: 2017-02-13

Provided herein are organic solvent-based processes for the removal of rubber from non-Hevea plants such as TKS. By the use of the processes, solid purified rubber can be obtained that contains 0.05-0.5 weight % dirt, 0.2-1.5 weight % ash, and 0.1-4 weight % resin (when it has been dried so as to contain 0.8 weight % volatile matter).

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