This report reviews the status of Japanese R&D in human-computer interaction (HCI) technologies and applications. It covers fundamental HCI research; R&D and applications in computer-supported collaborative work (CSCW), information network services and infrastructure, consumer devices and entertainment interfaces, technology and tools for people with disabilities, nuclear power, robotic manufacturing and service, and transportation; as well as HCI research infrastructure, education, and human resources. Information sources for this study included a literature review; visits to 22 relevant sites in Japan; and a review of the draft report by panelists, site visit hosts, and study sponsors. The panel found that Japan lags the United States in HCI basic research and practice, CSCW research, and network infrastructure research and practice. Japan leads in digital compression technologies, HCI research and applications for people with disabilities, game platforms, nuclear power plant control applications, and fuzzy logic applications.