Dr Katsuhita Katsuhito Yamaguchi specialises in the development of assistive tools for print disabled people to access scientific and mathematical content. He has been working at Nihon University since April 1990; he is now Professor at Nihon University and COO of NPO: Science Accessibility Net. Dr Yamaguchi is a member of several professional bodies, including the Institute of Electronics, Information and Communication and the Physical Society of Japan.