Sin-Itiro Tomonaga Profile Sin-Itiro Tomonaga (朝永振一郎): born 1906; died 1979; Japan. Related theoremsQuantum electrodynamics (QED) PagesPerson: Sin-Itiro TomonagaJourney: Sin-Itiro TomonagaTranscripts: Sin-Itiro Tomonaga ExploreDashboardTheoremsFrameworksLineagePeople