Abstract
In recent years, large-scale leakage cases of technology information were reported one after another. Thereafter, countermeasures to leakage of trade secrets has been debate over public and private. Useful technology information obtained as a result of research and development could be a competitive business tools when it is exclusively used.
This paper will report on how the exclusive use of Technology information can be ensured and on the recent trend of the systems for protecting Technology information.
