The two French officers first reached Samenoura Bay (鮫ノ浦湾) in the province of Nambu (modern Miyagi Prefecture), where they learned that the Imperial forces had subdued the Daimyos of Northern Japan, and that the rebel forces favorable to the Shogun had fled to the island of Hokkaidō.
With Abdus Salam and Steven Weinberg, he proved that in such theories zero-mass particles (Nambu-Goldstone bosons) must exist.
Nambu founded the Nambu Arms Manufacturing Company in Tokyo in 1927, with financial backing from the Okura zaibatsu .
Under the Nambu, major deposits of gold and silver were mined by the Fujita-gumi, the predecessor to modern Dowa Holdings for the Nambu clan at the Kosaka mine.
In 1973, Yoichiro Nambu suggested a generalization involving Nambu-Poisson manifolds with more than one Hamiltonian.
Most of the Type A and Type B Nambu pistols were produced by the Tokyo Arsenal with a few pistols being produced by the Tokyo Gas and Electric Company.