Sin-Itiro Tomonaga or Shin'ichirō Tomonaga (朝永 振一郎, Tomonaga Shin'ichirō?, March 31, 1906 – July 8, 1979) was a Japanese physicist, influential in the development of quantum electrodynamics, work for which he was jointly awarded the Nobel Prize in Physics in 1965 along with Richard Feynman and Julian Schwinger.
Read more about Sin-Itiro Tomonaga: Biography