Complex sentence: Due to her marriage to Shunsaku Okuda, her legal name changed to Tomoko Okuda (奥田智子) however she is still credited under "Kawase Tomoko".
Split into simpler sentences: Due to her marriage to Shunsaku Okuda, her legal name changed to Tomoko Okuda (奥田智子). However, she is still credited under "Kawase Tomoko".