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KDDI has pursued the R&D of information and communication technologies to facilitate the improvement of all communication systems and infrastructures, such as fixed communications, mobile communications focused on au mobile phones, and even their integration with broadcasting. It has also carried out various R&D to provide new services and leading-edge technologies in order to support the basic technology infrastructure of the future.
KDDI's R&D accurately grasps the future of information communication with its world-leading advanced technologies, and will continue to contribute to society through its progress in communications. It works toward the coming of a ubiquitous network society that realizes new businesses and lifestyles free from constraints of time and place.

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KDDI's R&D department has taken the lead in the future of communications, and has rapidly developed a wide range of activities within the five major fields shown in the illustration on the right, from basic research to practical research that takes into account marketability and sociality.

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