About copyright problems　　　　　　　

This whole web site is copyrighted to GFD Dennou Club. A copyright for each material belongs to the contributor.

These materials are streamed by the administration group of GFD Dennou Club (dcadmin) with consent by the contributors. Please do not try to make profit by these contents, infringe on the contributors' rights, or obstruct our project.

In this page, we are using the same materials used in the actual lectures and seminars of undergraduate or graduate schools. Because of it, there might be something that are copyrighted and are not supposed to use them in the web.

Please understand that this is a project for "future education," and that they are used for educational purposes.

We appreciate your corporation. If there are any problems at all, please contact us at