Hirokazu Tamaki is a chief researcher at Hitachi Ltd. He received his Ph. D in Engineering from Nagoya University in 2024. His research focuses on phase imaging techniques such as ptychography or phase-plate and their application to materials science. He is also working on the development of electron microscopes and their application techniques. His goal is to contribute to the advancement of materials science. He aims to achieve this through the development of innovative phase imaging techniques and state-of-the-art electron microscopes.