Dr. Kishioka is currently Review Director of the Office of Cellular and Tissue-based Products, PMDA. Since joining PMDA in 2008, Dr. Kishioka has worked in the Office of Cellular and Tissue-based Products where his responsibilities are the quality assessment of biotechnological/biological products as well as biosimilar assessment. He has been actively engaged in various international activities on these areas such as WHO, APEC, ICMRA, ICH and IPRP. From April 2019 to March 2022 he also worked in Office of International Programs and served as ICH Technical Coordinator and MHLW/PMDA international liaison official. He obtained a Ph.D. from Hokkaido University in Meat Science with emphasis in Molecular Biology.