noun
copyright holder; copyright owner
Legal term for the person or entity that holds the copyright to a work.
この曲の著作権者はレコード会社です。
The copyright holder of this song is the record company.
著作権者の許可なく複製してはいけません。
You must not reproduce it without the copyright owner's permission.
著作権 is the copyright itself, while 著作権者 is the person or entity holding that right.
Compound of 著作権 (copyright) + 者 (person).