Toshiyuki Masui is Professor of Faculty of Environment and Information Studies, Keio University, Japan. Before joining Keio University, he worked at many IT companies and laboratories, including Fujitsu, Sharp, Sony, AIST, and Apple. For many years, he has been working on improving the user interface of computers, mobile phones, and information appliances in the coming age. In 2001, he developed a predictive Japanese text input system, "POBox", for Sony's mobile phones. The technology is now the standard input method on almost all Japanese mobile phones. In 2006, he got headhunted by Apple for the development of iPhone's Japanese text input system. His 'flick-based' Japanese text input method is now the standard for Japanese smartphones.
He is the inventor of the "Gyazo" image capturing service, the "Scrapbox" information management system, and the "Helpfeel" help support system provided by Nota Inc., Japan, where he serves as the CTO. Around 10M users are using Gyazo worldwide, and Nota acquired $2M from Japanese VCs for the service in 2014.
His current research interest includes text input techniques, information retrieval, information visualization, IoT technologies, and authentication techniques.
Prof. Masui received BS and MS in Electrical Engineering from The University of Tokyo, Japan, in 1982 and 1984. He received a Ph.D. in Computer Science from The University of Tokyo in 1997.
1984-1986 Fujitsu Ltd.
1986-1995 Sharp Corporation
(1989-1991) Carnegie Mellon University (Visiting Researcher)
1996-2003 Sony Computer Science Laboratories, Inc. (Senior researcher)
2003-2006 The National Institute of Advanced Industrial Scienc and Technology (AIST)
2006-2008 Apple Inc. (Senior software architect)
2009- Keio University (Professor)
(2016) Cambridge University (Visiting Researcher)
B.S., The University of Tokyo, 1982
Major: Electronic Engineering
M.S., The University of Tokyo, 1984
Major: Computer Science
Ph.D, The University of Tokyo, 1997
ACM, IEEE, IPSJ (Information Processing Society of Japan), JSSST (Japan Society for Software Science and Technology)