Graduated from Tohoku University in 1978 and earned a PhD degree in 1984.
Served as a fellow at the Laboratory of Tumor Immunology and Biology, National Cancer Institute, NIH, USA, starting in 1984.
Appointed as a professor at Tohoku University in 1999.
Held the position of Dean of the Graduate School of Medicine, Tohoku University, from 2012 to 2015.
Currently serves as the Chair of the National Committee on Cancer Screening, Japan, since 2012.
Research expertise spans multiple fields, including oncology, surgery, molecular biology, and cancer screening.
Notable project: Led the Japan Strategic Anti-cancer Randomized Trial (J-START), supported by MHLW from 2007 to 2014 and by AMED from 2015 to the present.
Achieved a significant milestone when the primary endpoint assessing the efficacy of adjunctive ultrasonography in improving the sensitivity and detection rate of early breast cancer was published in The Lancet in 2016.
Further contributed to the field with a sub-analysis evaluating adjunctive ultrasonography for breast cancer screening among women aged 40-49 with varying breast density, published in JAMA Network Open in 2021.