According to Policy for nonresponsive package maintainers.
Takanori Matsuura did not respond on
https://bugzilla.redhat.com/show_bug.cgi?id=1105916,
contact email is silent too.
Moreover, his last build on koji was in late 2012.
As for both above mentioned, I want to take ownership on CVector and NearTree packages
that needed for rasmol package I maintain.
krege