Panasonic Toughpad JT-B1 official Pictures. Panasonic Toughpad JT-B1 is a Smartphone of panasonic. The Panasonic Toughpad JT-B1 Android Tablet. Announced Oct 2011. Features 7.0″ Display, 16 GB Storage, 1000 MB RAM. Panasonic Toughpad JT-B1 price starts.