Yoichiro  Nambu was awarded Nobel Prize 2008 in Physics "for the discovery of the mechanism of spontaneous broken symmetry in subatomic physics." 
                            Nationality    Japan
                            Institution    Enrico Fermi Institute, University of Chicago
                            Award          2008
                            Discipline     Physics
                            Co-recipients  Toshihide  Maskawa, Makoto  Kobayashi 
                            MotivationAwarded with Nobel Prize 2008 in Physics "for the discovery of the mechanism of spontaneous broken symmetry in subatomic physics." 
                            Further Information on the Official Web Site of the Nobel Prize