D. (Science) in 1993. After working at the ULSI Research Institute of NKK Corporation, he joined the Communications Research Laboratory (now NICT). After serving as Director of the Future ICT Laboratory and Director of the Wireless Networks Research Centre at the National Institute of Information and Communications Technology (NICT), he has been Director of the Beyond 5G R&D Promotion Unit since April 2021. He has been involved in the research and development of terahertz semiconductor devices, cameras and wireless systems. He is Vice Chair of the IEEE 802.15 Standing Committee on Terahertz (SC-THz).

2000 - 2015　
Worked in technical sales at a communication industry vendor.
Mainly responsible for sales to Japan for a Korean communications equipment vendor.

2016 – 2020
Worked as a sales manager at the Japanese branch of DZS, Inc.

Feb 2021 – Nov 2022
Joined Rakuten Mobile, Inc.
Director, Innovation Program Management Department, Technology, Strategy & Compliance Division.
Mainly manages collaborative research projects with government agencies.

Dec 2022 – Apr 2023
Deputy General Manager, Technology, Strategy & Compliance Division

May 2023 -
Division Manager, Technology, Strategy & Compliance Division

Feb 2025 -
Vice Director, Advanced Technology Engineering Supervisory Department

He has been involved in creating new businesses and supporting startups for over 20 years. He has extensive experience and a track record in creating new businesses and managing venture companies.
At NTT Docomo, he was in charge of planning new services, and was involved in international business while stationed in Paris. After that, he was in charge of new technology exploration and investment committee management in the R&D Strategic Investment Department, and at NTT Docomo Ventures, he led the launch of an incubation program aimed at co-creation with startups.

As a senior vice president at a Toyota fund, he led investments in overseas ventures. Over three years, he invested in 11 companies both domestically and internationally, totaling over 5 billion yen, and served as an outside director for five companies. He also supported many joint projects with Toyota Group companies.

He then participated as vice president, COO/CFO of an industrial IoT venture. Even during the COVID-19 pandemic, he raised double-digit billions of yen in three years, achieved capital and business alliances with four major companies, and contributed to the promotion of industrial DX.

He became CEO of the company in 2023, and grew the business sixfold in just one year.

Major industrial IoT achievements:
Supporting automobile manufacturers in developing new services, supporting delivery companies in introducing delivery robots, supporting telecommunications companies in developing new IoT businesses, supporting manufacturing companies in developing new businesses, supporting communications equipment manufacturers in developing new communications equipment technologies, managing an industrial DX support business using industrial IoT, founding an industrial 5G solutions business, etc.

5G-related experience:
System development and integration advisory work
- Development and provision of exhibition systems for major electronics manufacturers' 5G Lab
- Provision of local 5G systems for R&D for major communications companies
- 5G business collaboration with major communications companies, etc.

Specialties: Communications, mobility, IoT, AI

Mr.Otsuka began his career with major electronic manufacturer in Japan as development engineer for wireless communication systems. He worked many wireless systems developments like 3G/4G systems, and experienced whole development workflow from algorithms exploration to embedded systems implementation. In 2013, Mr.Otsuka joined MathWorks as application engineer responsible for signal/image processing, and then took on many role like computer vision, AI, and autonomoys systems such as automated driving. In early 2023, Mr.Otsuka promoted and has been responsible for communications, electronics, and semiconductor industries.

Led the launch of the smart home business at iTSCOM under the Tokyu Group, followed by serving as CEO of Connected Design Inc., a joint venture under the Tokyu Group, and as Director, COO, and CPO of ACCEL Lab Inc. Founded X-HEMISTRY Inc. in 2019, a leading team of smart home experts in Japan. X-HEMISTRY supports Japanese companies through all stages of developing new smart home businesses, from business and service planning to launch. Appointed Chair of the Japan Interest Group of the Connectivity Standards Alliance in April 2024, leading initiatives to promote the global smart home standard Matter and the access control standard Aliro.

"Starting with PHS, he has over 30 years of practical experience as a technical executive at mobile carriers in Japan and the US, and is active in contributing to the development of the industry with an international perspective. Recently, he has been using his experience in PHS to promote the integration of private networks and public services using sXGP.
He is also active in the integration of location information services and mobile technology."