sentences:  Following the import and evaluation of sample guns, the Imperial Japanese Navy decided in 1937 to adopt these weapons.To produce the Oerlikon guns, a group of retired Navy admirals created a new arms manufacturing company, the Dai Nihon Heiki KK.In 1939 this started producing a Japanese version of the FF, initially known as the Type E (because the Japanese transliteration of Oerlikon was "Erikon") but from late 1939 onwards formally known as the Type 99 Mark 1.