Worked in cancer research in Aichi Cancer Center Research Institute, Nagoya, Japan, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA, and University of California at Berkeley, Berkeley, CA, USA. Involved in Pathological field in Division of Oncological Pathology, Aichi Cancer Center Research Institute, Nagoya and Department of Diagnostic Pathology, Fujita Health University School of Medicine, Toyoake, Japan, steering the clinical, teaching, training and research works. Member of Digital Pathology Association, Japan, Japanese Society of Pathology, Japanese Society of Clinical Cytology, Japanese Society of Toxicologic Pathology, and Japanese Cancer Association. He has over 200 peer reviewed research publications in oncological and experimental pathology and more than 20 book chapters to his credit. Currently he is involved in image analysis using deep learning and computer-aided detection/diagnosis in pathological cytological fields.