Research experience

Institute of Information Security, Japan Graduate School Visiting Researcher

Institute of Information Security, Japan Graduate School Visiting Professor

Georgia Institute of Technology College of Computing Research Scholar

FIDO Alliance, Inc. Board of Directors, Secretary at Executive Council, and Chair of FIDO Japan WG

Sony Corporation CE Software Platform Division Senior Software Project Manager

Sony Ericsson Mobile Communications, Inc. Software, Tokyo Development / Tokyo Engineering Director, Sony MVP2004

NTT DOCOMO, INC. Product Innovations and Security Services Senior Director

Japan Smartphone Security Association Vice Chairman, Executive Board Member

Sony Ericsson Mobile Communications (USA), Inc. R&D Group Senior Project Manager

World Wide Web Consortium (W3C), Inc. Board of Directors

NTT DOCOMO, INC. Chief Security Architect

FeliCa Networks, Inc. Member of the Board (Part-time)

DOCOMO Innovations, Inc. Android Product Innovation Group

NTT DoCoMo, Inc. Customer Equipment Development Department Manager