His current research interests include the design, fabrication, and characterization of electron devices for ultrahigh frequencies, including terahertz. He has written or contributed to more than 150 papers published in technical journals and international conferences.,Dr. Suemitsu is a member of the Japan Society of Applied Physics (JSAP), the Physical Society of Japan, and the Electrochemical Society. In 1996, he received the Young Scientist Oral Presentation Award from JSAP. In 2003, he received the Best Paper Award from the Institute of Electronics, Information and Communication Engineers. In 2007, he received the Best Paper Award of the Electronics Express.

IEEE Fellow 2021