Born in Japan, Tomoko Nishikawa and has been living in Germany since 1983. She studied piano with Prof. Ludwig Hoffmann and Prof. Margarita Höhenrieder at the Hochschule für Musik in Munich, where she graduated with a master's degree with chamber music as her second major. She also attended masterclasses with Rudolf Buchbinder, Arne Torger, and Bengt Forsberg.

Nishikawa has won prizes at solo and chamber music competitions, including first and special prizes at the international chamber music competition "Città di Finale Ligure" in Italy. In 1996, Tomoko Nishikawa was accepted into the "Yehudi Menuhin Live Music Now" support program, where she is currently active as a volunteer in the organization.

As a soloist and chamber musician, she has performed in numerous concerts and radio broadcasts. Since 1995, she has been a lecturer for accompaniment at the “Hochschule für Musik und Theater” in Munich, and from 2002 to 2007, Nishikawa had an additional teaching assignment at the “Hochschule für Musik” Nürnberg-Augsburg.

She is also in demand as an official piano accompanist at international masterclasses and competitions, including the ARD Music Competition in Munich, Leopold Mozart Violin Competition, Kloster Schöntal Violin Competition, and Marvão Academy.