noun
copyright holder; copyright owner
Legal term for the person or entity that holds the copyright to a work.
この曲の著作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 means 'copyright' itself, while 著作権所有者 refers specifically to the person or entity that holds that right.
Compound of 著作権 (copyright) + 所有者 (owner).