Minerals from conflict areas such as the African continent can be a source of funds for those who promote conflicts, and therefore regulations have been established such as regulations pursuant to the Dodd-Frank Wall Street Reform and Consumer Protection Act in the U.S. and similar regulations in Europe. Although we are not directly obligated to comply with these regulations, we are investigating the use of conflict minerals in our products about which there have been requests for investigations from our customers driven by societal demands. We report the investigation results in the CMRT (Conflict Minerals Reporting Template) format, which is an international template for investigations.