A comprehensive portal site for Medical Innovation Support Office (MEDISO).Medical Innovation Support Office

Yutaka Tomioka

Project Researcher, Department for the Promotion of Medical Device Innovation, National Cancer Center Hospital East.
Chief Regulatory Scientist, ayumo Inc.
Chief Development Officer / Director, Atransen Technologies, Inc.

Ph.D. (Engineering). I began my career at the Pharmaceuticals and Medical Devices Agency (PMDA), where I worked in medical device review and reliability inspection (reliability standards compliance inspections and on-site GCP inspections for medical devices). My responsibilities included the approval review, consultation services, and reliability inspections for a wide range of medical devices, including novel medical devices. Drawing on my 10 years of experience at the regulatory authority, I moved to National Cancer Center Hospital East in July 2019 to support the development of medical devices originating in Japan. At National Cancer Center Hospital East, I supported medical device development led by both academic institutions and companies. I left my full-time position at National Cancer Center Hospital East at the end of 2025, and joined ayumo Inc. in January 2026 (current position), where I lead the regulatory affairs team.I also joined Atransen Technologies, Inc. in May 2026 (current position). I currently hold part-time positions at National Cancer Center Hospital East, Yokohama City University, and the National Defense Medical College, while also supporting a number of startups, pharmaceutical companies, medical device manufacturers, academic institutions, and small manufacturing workshops (machi-koba) in Ota Ward, Tokyo.

Tadashi Sameshima

I have been engaged in product development and business operations of medical devices and regenerative medicine products for 37 years at Terumo Corporation. I have experienced the development of medical devices such as extracorporeal circulatory and blood transfusion devices, as well as the development to commercialization of cellular products. In addition, I am able to provide specific advice on various stages of development based on my participation in joint research with universities, collaboration among companies, discussions with government agencies, and activities of industry associations.

Satoshi Ogawa

TMI Associates Partner (Attorney)

Satoshi Ogawa, Ph.D., is a partner at TMI Associates specializing in life sciences and healthcare. After earning his Ph.D. in Life Sciences from Kyoto University, he joined TMI Associates as an attorney. Following a three-year secondment at a law firm in New Delhi, India, he has been based at TMI’s Kyoto Office since 2019. Dr. Ogawa advises both Japanese and international clients on cutting-edge technologies, including regenerative medicine, digital health, and AI-driven healthcare solutions. His work covers startup support, patent licensing, industry–academia collaboration, regulatory compliance, and intellectual property disputes. He works extensively with universities, startups, pharmaceutical and medical device companies, venture capital firms, and public institutions. He also serves as an advisor to BioCommunity Kansai (BiocK) and HVC KYOTO, and contributes to conflict-of-interest (COI) committees and institutional review boards (IRBs). Dr. Ogawa is passionate about advancing innovation and helping clients navigate complex legal and regulatory challenges in the life science ecosystem. His publications include “Startup Intellectual Property and Legal Guidebook – Key Points for Early-Stage Bio and Life Science Ventures” (METI-Kansai) and “Healthcare Business Legal Consultation Handbook” (Chuokeizai-sha).

Kazufumi Nakamura

Mitsui & Co. Global Investment, Inc.　Investment Director

Kazufumi Nakamura is an Investment Director focused on the investment in biotech in US and China. By leveraging his experiences and networks in Pharma, Biotech and Academia, he connects companies to those experts to expand business and gain scientific insight to help the companies succeed with their important missions.
Kazufumi has over 20 years of healthcare and life sciences experience, spanning business development, investment, entrepreneurship and R&D. Prior to joining MGI, he co-founded a biotech to accelerate innovations through academic institutions in Japan. Previously, he engaged in business development and conducted scientific evaluation, and license-in and license-out of pharmaceutical products at Santen Pharmaceuticals. In addition, he was responsible for creating relationships with the leading academic institutions and innovators, gaining Santen early access to innovation. Prior to Santen, he held a number of clinical development roles at Janssen Pharmaceuticals, including the development of Alzheimer’s disease and Rheumatoid arthritis programs.

Masanori Sato

ReachMed Partners LLC President

Masanori has extensive experience in pharmaceutical R&D, alliance management, and business development. Their career evolved into leadership roles in global product launches, strategic licensing, and early-stage clinical development, particularly in antiviral therapeutics at a R&D focused pharmaceutical division of a leading Japanese conglomerate. Later, as head of the business development department, they managed global licensing agreements and partnerships with major pharmaceutical companies in the U.S. and Europe for multiple in-house pipeline assets. Since 2016, they have held leadership roles in alliance management and business development at leading U.S. biotech and European pharmaceutical companies, focusing on partnerships with Japanese firms, contract negotiations, and search & evaluation of external technologies/assets across Japan and the Asia-Pacific region. From 2021, they joined a top Japanese pharmaceutical company, where they led open innovation initiatives, incubation of internal and external seed assets, and support for venture investments. During this time, they also served as a board member for a portfolio biotech companies. In March 2025, they founded their own company, leveraging their broad expertise and network to support Japanese biotech startups and assist international startups into Japan. They hold national license for Small and Medium Enterprise Management Consultant, among others.