noun
Legal term for the person or entity that owns the copyright to a work.
この曲の版権所有者はレコード会社です。
The copyright holder of this song is the record company.
著作権者 is a more general term for a copyright holder, while 版権所有者 specifically refers to the owner of publishing rights.
Compound of 版権 (copyright) and 所有者 (owner).