Nintendo Research and Development 2 (also known as R&D2) was a team within Nintendo that developed software and peripherals. R&D2 did not develop any software titles for the first decade at Nintendo. The team was originally led by Masayuki Uemura, who previously worked for Sharp Corporation. By using an idea of Sharp's solar technology, Uemura's department went on to develop the popular Nintendo beam gun games, selling over 1 million units. Uemura's name is sometimes mistranslated as Masayuki Kamimura.