Abstract
Intellectual properties such as invention, technology and other know-how are essential for companies to maximize business opportunities. For companies, the leakage of inventions and so on is a matter of life or death. However, such leakage is a very troublesome problem in that it occurred while even the companies do not know. There is also progressing a legal maintenance, signs of leakage is not being eliminated. The development of ICT in recent years, a slight mistake may cause leakage of the invention. Therefore, we are considered in this study, such as to prevent leakage of the invention is that it is necessary to the common recognition of participants. We propose a visualization of the invention using a logic model concerning the "unfavorable appearance". By looking at the logic model, participants will be able to grasp time series to be done for the leak of a secret.
