Our Leaders -
Management

As Vice President and CTO of Hitachi, Ltd., Sameshima is responsible for research and development in the Hitachi Group to accelerate innovation, as well as leading the Research & Development Group of Hitachi, Ltd.

Sameshima joined the Systems Development Laboratory of Hitachi, Ltd.,in 1993 as a researcher ,working on the research and development of autonomous decentralized systems (ADS) for societal infrastructure encompassing sectors such as power & energy, transportation and industry, and the international standardization of technology.

As a recognized authority in symbiotic ADS, his global business acumen was honed through working in the business division to promote systems solutions in infrastructure such as railway traffic management, utility operation, water supply system, and industrial automation as well as involvement in several Smart City projects. On the research side, Sameshima has led systems engineering and production engineering research, which later extended to overall R&D strategy for the Hitachi Research & Development Group. Sameshima was appointed a corporate officer of Hitachi, Ltd. in 2020. From 2023, he was entrusted with the strategic direction of digital technology, and innovation integrating OT and Products for infrastructure systems as CTO of the Digital Systems & Services Division of Hitachi, Ltd. He assumed his current position in 2025.

Sameshima received his M.Eng. (Aeronautics) and Ph.D. (Information Science & Technology) from the University of Tokyo, and is also a member of the Institute of Electrical Engineers of Japan (IEEJ) and the Society of Instrument and Control Engineers (SICE).

Responsible for proposing research strategies, and technology management of the Research &Development Group.

Koike joined Hitachi after completing her M.Sc. at Kyoto University in 1994. At the Central Research Laboratory, she was involved in the development of biomedical knowledge processing and genome analytics before focusing on technology development and productization of medical diagnostic・therapeutic equipment. After working in the business side of Hitachi in the Government & Public Corporation Information Systems Division, in the Future Investment Division at Head Office, and as CTO of Healthcare Business Division, she assumed her current position as head of the Technology Strategy Office.

Koike received her Ph.D. from the University of Kyoto in 1999. She has also held several positions in academia including visiting associate professor from 2003-2005 at the University of Tokyo Graduate School of Information Science and Technology, and more recently, a visiting professor at Tohoku University from 2014-2018. She is a member of the American Society of Clinical Oncology (ASCO).

Responsible for R&D for technology innovation with a special focus on digital technologies supporting social innovation business.

Hanaoka joined the Central Research Laboratory of Hitachi after completing his master’s degree in telecommunication engineering at Osaka University in 1996. After engaging in R&D for next-generation wireless communication systems (3G, 4G, 5G, cognitive radio) and in international standardization activities, he changed his area of research focus to network systems, connectivity, IT platforms, and their management. From 2018-2019, he worked as a senior manager in the Management Planning Office of the Strategy Planning Division at Hitachi headquarters before returning to the Research &Development Group in 2020 to serve as the Head of the Digital Technology Innovation Center, and in 2021, as the Head of the Digital Platform Innovation Center, before assuming his current position in April 2023.

Hanaoka is a senior member of the Institute of Electronics, Information and Communication Engineers (IEICE) and a member of a member of IEEE and the Information Processing Society of Japan (IPSJ).

In 1996, Sugimura graduated from the University of Tokyo with a Master's degree in Aerospace Engineering, and joined the Mechanical Research Laboratory, Hitachi, Ltd. While in charge of mechanical engineering research using simulation, numerical optimization, and data mining techniques for home appliances, rolling stock, and industrial compressors, he was also a visiting researcher at the University of Cambridge, UK, in 2001. After that, he worked in technology strategy development, overall management of mechanical engineering research, and Harvard Business School Advanced Management Program, and led global environmental research for 5 years at Hitachi Europe Ltd., before assuming his current position in April 2025.

Sugimura is a member of the Japan Society of Mechanical Engineers.

Responsible for vision-driven exploratory research for the Hitachi R&D group. This includes fundamental and frontier research in information sciences, physical sciences, life sciences and environment sciences, as well establishing new areas of research to address challenges faced by society.

Miwa joined the Production Engineering Research Laboratory, Hitachi, Ltd., in1998 after completing his M. Eng. in Mechanical Engineering from the University of Keio. As a research Engaged in research and development of production and quality control systems, design for manufacturing (DfM: Design for Manufacturing), inspection and measurement in Hitachi's manufacturing field. 2005-2006 Visiting Industrial Associate at Stanford University, Mechanical Engineering. From 2023 to 2024, Miwa served as the General Manager of the 2050 Project Office of the Innovation and Growth Strategy Division, and from 2024 to present, Miwa has been in his current position.

Miwa is a member of The Japan Society of Mechanical Engineers and The Society of Precision Engineers.