1. By: Shane Burns

2.  Born in Tokyo, Japan.  Born on March 31 st, 1904.  Family moved to Kyoto in 1913.  In Kyoto his Father became a physics professor. Tomonaga’s beginning.

3.  Graduated in 1929 with Bachelors degree in physics.  Earned his bachelors degree in Kyoto Imperial University.  Spent 3 years doing graduate work at kyoto.

4.  Moved to Leipzig, Germany, from 1937 to 1939.  In Germany he began to study nuclear physics.  Moved back to Tokyo in 1940  At the Tokyo Bunrika University he studied the meson theory.

5.  Befriended Dr. Hideki Yukawa, a Nobel laureate.  Was appointed Dr. Yoshio Nishina at Institute of Physical and Chemical Research.  He met Dr. W. Heisenberg in Leipzig, Germany.

6.  Developed theoretical physics quantum electrodynamics with Dr. Nishina.  In 1940 developed the intermediate coupling theory.  Developed theory of systems consisting of wave guides and cavity resonators.

7.  Developed theory of covariant formulation of quantum field in 1942.  Developed renormalization theory with covariant formalism in 1944.

8.  Solved the motion of electrons in the magnetron.  clarified the nature of collective oscillations.  Clarified quantum-mechanical many-body systems.

9.  Worked at Institute of Physical and Chemical Research.  Became professor of Tokyo Bunrika University in 1941.  Entered the Institute for Advanced Study in 1949.

10.  Established Institute for Nuclear Study in 1955.  Appointed President of the Tokyo University of Education in1963

11.  Won the Japan Academy Prize in 1948.  Won the Order of Culture in 1952.  Won the Noble Physics Prize in1964.

12.  Published “Internal friction and thermal conductivity of nuclear matter”.  Published “elementary theory of quantum mechanical collective motions”.  Published "Quantum Mechanics" in 1949.

13.  married in 1940.  Had two sons and one daughter.  Sin-Itiro Tomonaga died on July 8, 1979.

14. From Nobel Lectures, Physics 1963-1970, Elsevier Publishing Company, Amsterdam, 1972Nobel Lectures