Since 1948 Hitachi Koki Company Ltd. has been an independent member of the broadly diverse Hitachi group. Hitachi Koki's relationship with its parent company brings important benefits to customers. These benefits include immediate access to the latest advancements in metallurgy, motor design and electronics - often long before these technologies appear in other manufacturers' product. An example of this benefit is the ultra-high speed motor developed by Hitachi for use in medical centrifuges. Hitachi Koki uses the same armature balancing technology in developing electric motors for its line of power tools.