SUPERIOR TIRES FOR ONE AND ALL A DREAM WORTH CHASING

As part of our commitment to serving society with superior quality, we invest $800 million each year in developing and innovating safer, more efficient and more eco-friendly tires in all categories.

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NON-PNEUMATIC TIRE TECHNOLOGY “AIR FREE CONCEPTTM

Non-pneumatic tires that support the weight using a unique structure of spokes

The “Air Free Concept     ” is a technology that eliminates the need for tires to be inflated with air to support the weight, using a unique structure of spokes stretching along the inner sides of tires. With this technology, tires need less maintenance and have no worry of punctures.

The resin spokes with “Air Free Concept” technology provide higher flexibility for design and recyclability than conventional tires. Bridgestone is committed to continuously working toward a sustainable society with the universal and eco-friendly mobility through developing advanced tire technologies.

“NANO-PROTECTTM” Technology to control molecular structures.

The Bridgestone Group creates new tire materials and compounds using “NanoPro-TechTM” to meet a wide range of tire performances.

Silica dispersion technology is a good example of NanoPro-TechTM

While silica can improve both fuel efficiency and wet grip performance of tires, its hydrophilic surface is not suitable to disperse well in hydrophobic rubber. Therefore silica dispersion is a main issue to get better performances of tires.

We design rubber molecules to bind well with silica particles for improving silica dispersion in rubber.

With this technology, we facilitate maximum use of the benefits of silica and achieve tire performance improvement.


RUN-FLAT TIRE TECHNOLOGY

Continue driving up to 80km after a puncture

The Bridgestone group’s run-flat tires give drivers peace of mind. Unlike conventional tires which need to be changed or repaired immediately after a puncture, run-flat tires can safely drive on for up to 80 kilometers at 80 km/h. *1

*1Drivable distance under conditions based on ISO technical standard or specific vehicle tests.

  1. There is no need to stop and change tires by the road side after air loss is detected so you can continue driving rather than being stranded right away.
  2. It can contribute to saving materials by eliminating the need for spare tires and wheels, which are seldom used.
  3. Car interiors can be designed with more flexibility, allowing for more trunk space.


OLOGICTM Next generation tire technology for fuel efficiency

The Bridgestone Group’s fuel-efficient tire technology, named “ologic,” produces superior fuel efficiency with the following two features:

  1. Large tire diameter and high inflation pressure to significantly mitigate deformation of a tire in contact with the road surface and thus reduce rolling resistance
  2. Narrow tire width to reduce aero-dynamic resistance, which is an important factor in the improvement of a vehicle’s fuel efficiency

In addition, by optimizing rubbers and other materials of reinforcement layers, tire structures and tread patterns, a 30% reduction of rolling resistance coefficient along with a 10 % improvement of braking on wet road has been achieved compared with a conventional tire. (*1)

*1Based on a comparison between a tire with the ologic technology (tire size: 155/70R19, inflation pressure: 320kPa) and a conventional tire with an equivalent load capacity (tire size: 175/65R15, inflation pressure: 210kPa).


HYDROGEN HOSE FOR HIGH-PRESSURE FILLING OF HYDROGEN

Toward popularization of a new clean fuel, hydrogen, and realization of a hydrogen-based society

The Bridgestone Group developed a flexible hydrogen-filling hose capable of containing high-pressure hydrogen based on its technologies for ultrahigh-pressure hoses for water jet applications, etc.

A plastic material suited for containing hydrogen gas is used for the inner layer. For the reinforcement layer, steel wire with impressive tensile strength is wound in six tiers to form a layer that endures the high pressure of hydrogen gas. Further, the optimization of material and winding pattern of steel wire also produces both strength to endure high pressure and flexibility for usability.

The Bridgestone Group will continue its contribution to the development of a hydrogen-based mobile society through diverse products realized with our advanced technologies.

SENSING TECHNOLOGY OF TIRES AND ROAD SURFACES

Tire and road surface condition sensing to support the safety of driving experience

For example, at night, when you have poor visibility, getting detailed information on road conditions would be helpful for your safe driving.

The Bridgestone Group‘s “CAIS™ (Contact Area Information Sensing *1)” is a technology to classify road conditions in real time into seven different types, dry, semi-dry, wet, slush, fresh snow, compacted snow, and ice, by using sensors attached to tires.

*1“CAIS” is a registered trademark of Bridgestone Corporation.

The Bridgestone Group is developing sensing technologies and systems by combining tires and sensors regarding not only road conditions but also tire information, such as amount of wear, etc. Through these technologies, we continue to make activities to support safe and secure mobility.