The term WALKMAN MANUFACTURER is answered by the four letter word SONY. Sony is a Japanese multinational conglomerate corporation that is headquartered in Tokyo, Japan. It is one of the world's largest manufacturers of consumer and professional electronics. Sony is best known for its audio and video products, such as the Walkman portable music player, which was released in 1979. Sony has been a leader in the development of consumer electronics and digital media since its founding in 1946.