Radar, which makes RFID sensors for retailers to track inventory in real time, raises $16M from Ashton Kutcher's Sound Ventures, NTT Docomo Ventures, and others Paul Sawers / VentureBeat : VentureBeat 2019-03-28 Paul Sawers NTT Docomo Ventures, RFID, Sound Ventures, Ashton Kutcher's, Paul Sawers / VentureBeat