Keypasco Authentication Technology is an authentication solution that has been granted patent protection in Japan. The product appears to focus on providing authentication capabilities for user access control. Based on the limited information available from the provided page content, which indicates a faulty link or error page, specific technical details about the authentication mechanisms, deployment models, or implementation methods cannot be determined. The patent grant in Japan suggests the technology includes proprietary authentication methods or processes. The product is positioned in the identity and access management space, specifically within authentication technologies. Without access to detailed product documentation or functional specifications, the exact authentication methods, supported protocols, or security features cannot be accurately described.