He attended Konan University, Department of Literature at the age of 18. Graduating in 1968, he moved to Minami-daito Island to establish the longest radio traffic record in the world. Then he successfully made the radio contact with PY5BAB from Curitiba where 19997.05 km away from Minami-daito Island is. As a result, he had become the new world record holder of the 50 MHz and it was pressed in the 1984 Guinness Book.CQPublisher1982 History in 1982
