Osamu Tezuka ( æ å æ '' è `` , Tezuka Osamu ? , November 3 , 1928 â `` February 9 , 1989 ) was a famous Japanese cartoonist , manga artist , animator , producer and Doctor of Medicine , although he never practiced medicine . Osamu Tezuka was a Japanese Cartoonist , manga artist , animator , producer and medical doctor , although he never practiced medicine .