Misa Imanaka-Miller has been with Sasakawa USA since the late 1990s and serves as the Director for Finance and Office Manager. Miller became acquainted with Sasakawa USA as a patron of the Sasakawa Peace Foundation USA Library. In 1999, she joined the foundation as a Library Assistant. She was promoted to overseeing all the operations of Library, which was the largest Japanese library in the DC area. Miller was promoted to Office Manager, assisting the Director for Programs and Administration both in administrative and financial duties in 2006. She was promoted to Director for Finance in 2019.
After the Great East Japan Earthquake in 2011, she worked to raise donations for Care for Japan, 3/11/11 Great East Japan Earthquake and Tsunami Relief Fund.
Prior to joining Sasakawa USA, Miller majored in linguistics and worked as a language instructor both in the United States and Japan.