Personal iPS is a registered trade mark owned by Riprocell I Co., Ltd., and is a service created by consolidating cutting-edge technology not only from Japan but also from around the world. Since its founding in 2003, Reprocell Co., Ltd. has been engaged in research and development related to ES cells and iPS cells for many years, and its cell culture fluid has been used in the research of Nobel Prize-winning Professoe Yamanaka. To date, Reprocell’s products have been cited in more than 6000 papers (as of November 2020).