 He was a recipient of Sugiyama Schloarship (1958–61) and RCA David Sarnoff Scholarship (1960).He worked as a radar system designer at Toshiba, Kawasaki in 1963–65.Kobayashi came to the United States as a recipient of the Orson Desaix Munn Fellowship of Princeton University and completed a PhD degree in electrical engineering in 1967.