After a brief spell teaching at
Aberystwyth University, in 1948 he returned to Oxford to study under
Homer Hasenpflug Dubs and won a second first-class degree in Chinese. He planned to study in China but after the founding of the People's Republic in 1949 he instead studied for two years at
Kyoto University, where he studied under
Kaizuka Shigeki. In 1954 Bownas founded the Department of Japanese Studies at Oxford and in 1965 he was appointed to the Japanese Department at the
University of Sheffield, where he was the university's first professor of Japanese studies. Bownas acquired a specialised knowledge of Japanese business practices, especially the motor industry. He got to know leading Japanese industrialists and was appointed as a consultant to the companies who built
Kansai International Airport. Bownas also served as a Japanese interpreter for the
BBC during the Tokyo
1964 Summer Olympics. In 1970 Bownas worked with Japanese writer
Yukio Mishima on an anthology of new writing in Japan. He co-authored
Business in Japan: A Guide to Japanese Business Practice and Procedure with Paul Norbury (1974). In 1973 he was given a Tanaka grant by the Japanese prime minister to further Japanese language studies in Britain. He retired in 1980. ==Personal life==