Recent activities in accelerator construction and STF cryomodule

Since being founded in 1910, Hitachi, Ltd. has been providing a wide lineup of products and services in fields ranging from consumer home electronics to social infrastructure. The corporation has conducted a wide range of activities in the field of particle accelerators as well. This paper describes Hitachi´s contributions to the history of accelerator construction, major devices recently handled by Hitachi, and its efforts in developing STF cryomodules as part of recent R&D oriented toward the International Linear Collider (ILC).