Forty-six years ago today, on July 8, 1979 (June 15, 1979 lunar calendar), Japanese physicist Shinichiro Asanaga passed away. Shinichiro Asanaga (1906-1979), a Japanese theoretical physicist, won the 1965 Nobel Prize in Physics. Shinichiro Asanaga, born on March 31, 1906 in Tokyo, Japan. He graduated from the Department of Physics, Faculty of Science, Kyoto University in 1929. Then he worked as a temporary trainee graduate student in the research office of Kojiro Tamagi. Three years later, he went to the Institute of Physics and Chemistry in Tokyo and worked as a researcher in the research office of Yoshio Nishino. In 1937, he studied in Germany and studied nuclear theory and quantum theory under the leadership of W.K. Heisenberg. At the end of 1939, he returned to China to receive a doctorate in science from the Imperial University of Tokyo. In 1941, he became a professor of physics at the University of Arts and Sciences in Tokyo During World War II, he studied the theory of magnetrons in radar technology and published the paper "Theory of Magnetoelectric Management of Divided Anodes". After the war, he continued to research and develop his super-long-time theory and meson coupling theory, and participated in the founding of "Advances in Theoretical Physics". Based on his super-long-time theory, Shinichiro Chaoyong found a way to avoid the divergence difficulties in quantum electrodynamics, which is the famous renormalization method. Using this method, experiments on Lamb shifts and abnormal magnetic moments of electrons can be successfully explained. Almost at the same time, American physicists J.S. Schwinger and R.P. Feynman also independently completed similar research. This unique research has made the theory of quantum electrodynamics describing the microscopic world an accurate theory, and has had a profound impact on subsequent theoretical development. In 1949, Shinichiro Asanaga applied for a job at the Institute for Advanced Study in Princeton, USA, and proposed a one-dimensional model theory of the multi-fermion system with high density limit. After returning to China, he founded the Institute of Nuclear Research at the University of Tokyo. After 1956, he successively served as the president of Tokyo University of Education, the president of the Japanese Academic Conference, and the director of the Institute of Optics at Tokyo University of Education. He died in Tokyo on July 8, 1979. In 1965, Shinichiro Asanaga won the Nobel Prize in Physics with Schwinger and Feynman for his achievements in the basic theory of quantum electrodynamics. He has also received the title of academician of the Japanese Academy of Sciences, the Order of Japanese Culture, and honorary academician of the Academy of Sciences in several countries. In May 1957, Shinichiro Asanaga led a Japanese physics delegation to visit China and conduct academic exchanges. Shinichiro Asanaga's father was a researcher of Western philosophy, Shiro Asanaga, and Shinichiro Asanaga and Kidoro Nishida were both members of the Kyoto School; Shinichiro Asanaga was born in Kyoto. After graduating from the Third High School, he entered the Department of Physics of the Faculty of Science of Kyoto Imperial University and graduated. During World War II, Shinichiro Asanaga went to Princeton University in the United States for research. Shinichiro Asanaga's greatest research achievements are renormalization theory and neutron research, and he won the Nobel Prize in Physics for renormalization theory. And Shinichiro Asanaga has also written many books on the popularization of science A famous Japanese physicist who made outstanding contributions to the development of physical theory and achieved tremendous success.