Specialties: - Identity Management, Network Identity Management, Federated Identity Management
- Web Services Standards (e.g., Liberty Alliance, OASIS SAML, OpenID, WS-*, InfoCard, MSFT CardSpace, etc.)
- Web Security
- Mobile Phone Architecture, especially "Japanned Mobile Phone" (e.g. vertical model vs. horizontal model, FeliCa, payment, credit, securities)
- Internet Payment/Credit Services
- Management of Technology (MOT); especially Technical Marketing, Knowledge Management, Project Strategy