Yoichiro Nambu

was a Japanese-born American physicist, a professor at the University of Chicago. 
Works
Nambu was known for his works to the field of theoretical physics, he was awarded a one-half share of the Nobel Prize in Physics in 2008 for the discovery in 1960 of the mechanism of spontaneous broken symmetry in subatomic physics, related at first to the strong interaction's chiral symmetry and later to the electroweak interaction and Higgs mechanism.  

The other half share was split equally between Makoto Kobayashi and Toshihide Maskawa "for the discovery of the origin of the broken symmetry which predicts the existence of at least three families of quarks in nature."(according to the NP citation).

Nambu became a U.S. citizen in 1970.

References

Category:1921 births
Category:2015 deaths
Category:University of Chicago faculty
Category:American Nobel Prize winners
Category:Japanese physicists
Category:Naturalized citizens of the United States
Category:Scientists from Tokyo
Category:American theoretical physicists
Category:Wolf Prize winners
Category:Japanese Nobel Prize winners
Category:University of Tokyo alumni
Category:University of Tokyo faculty
Category:Nobel Prize in Physics winners