"You may freely use these code charts for personal or internal business only. You
may not incorporate them into any productor publication, or otherwise distribute them without express written permission from the Unicode Consortium"
You might want to read http://www.unicode.org/unicode/copyright.html at the bottom of the code charts page. They seem to explicitly allow derivative works but the code charts do not appear to be in this category.
I did write to them yesterday but got no answer so far.