Japanese police arrested Yuki Takenaka, head of Ripple Trade Japan (RTJ) who is believed to have issued an IOU to a customer in Miyagi Prefecture for Ripple currency worth 1.4 million Japanese yen. Mr Takenaka is also believed to have issued fictitious IOUs worth 120 million yen to other customers have well. This was done despite the absence of money to back the IOUs. He has already admitted to the allegations.