Professor Toshiei Kimura was born on August 10th, 1925, in Hiroshima. He graduated from Kyoto Imperial University in 1948. Right after his graduation from the university, he was offered assistant professorship at the Research Institute for Theoretical Physics, Hiroshima University. He was promoted to associate professor a few years later and eventually to full professor, and served as the director of the institute for several years. He worked there until his retirement from Hiroshima University in 1990.
During these years, Professor Kimura made many important, pioneering contributions to theoretical physics, especially in the fields of general relativity, gravitation and cosmology. To name a few, among them are the canonical quantization of cosmological gravitational modes (1962-64), the discovery of gravitational anomaly (1968-69), and the derivation of the second post-Newtonian equations of motion for many-body systems (1973-1974).
After his retirement from Hiroshima University, he worked as professor at Prefectural University of Hiroshima from 1990 to 1994. He received Soryushi (Elementary Particle) Medal in 2003 for his pioneering work on gravitational anomaly, and he was awarded the Order of the Sacred Treasure under the name of the Emperor of Japan in 2005. He died in December 2005 at the age of 80.