NTT DOCOMO Inc (NTT DOCOMO) is a Japanese telecommunications company providing mobile communications, broadband, international communications, corporate communications, digital content, financial, healthcare, energy, and lifestyle services. It serves more than 73 million customers in Japan and operates nationwide LTE and 5G networks.

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NTT DOCOMO conducts R&D in areas such as 5G evolution, 6G, Open RAN, network virtualization, AI, IoT, NFC infrastructure, quantum-computing-based network optimization, next-generation network topology, telemedicine, data and AI technologies, and AI-centric ICT platforms. The company is also exploring autonomous network operations, ultra-low-latency networks, distributed data-center connectivity, and technologies supporting autonomous driving, robotics, and energy management. DOCOMO aims to commercialize 6G around 2030. DOCOMO R&D leads research and development in advanced communications technologies, including 5G evolution, 6G, Open RAN, artificial intelligence, the Internet of Things, network infrastructure, and related services. Its DOCOMO R&D Center, located at Yokosuka Research Park, serves as a central hub for the company’s R&D activities and has conducted technology projects. DOCOMO’s overseas research units include DOCOMO Innovations, Inc., DOCOMO Communications Laboratories Europe GmbH, and DOCOMO Beijing Communications Laboratories Co., Ltd. These units provide international research capabilities, technical expertise, and support for global standardization and international technology development. As of March 2026, NTT DOCOMO holds approximately 5,100 patents in Japan and around 13,400 patents overseas. The company has jointly published white papers with SK Telecom on 5G evolution and 6G technologies.