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Leo Esaki
Biography
• Born March 12th, 1925, in
Osaka, Japan.
• Married Masako Araki in 1959
• Two daughters, Nina and
Anna
• One son, Eugene
About Leo Esaki
• Wanted to understand nature
• After the war, decided to go into
industrial research
• Joined Sony Corporation
• Discovered tunnel diode, first quantum
electron device
About Leo Esaki
• His American dream, he came to U.S.
• Joined IBM Research
• Suppose to one-year visit, but lasted 31
years.
• 1967, was named an IBM Fellow
Leo Esaki Work
• IBM/T.J. Watson Research Center focused
on man-made semiconductor
• Opened new field, known as
semiconductor quantum structures
• 1985, shared with two colleagues the
International Prize
• 1991, was awarded for IEEE Medal of
Honor
Leo Esaki
• Is a Fellow of the American Academy of
Arts and Science
• Foreign Associate of National Academy of
Sciences and Engineering
• Retains close ties with his homeland. (visit
several times)
Leo Esaki
• Is a Director of IBM-Japan
• Member of the Japan
Academy
• Director of Yamada
Science Foundation
• An Adjunct professor at
Waseda University
Degrees
• Earned B.S. at Tokyo University in 1947
• Received PhD at Tokyo University in 1959
• Adjunct Professor at Waseda University,
Japan
 Tokyo University
Received Awards
• Only one of three Japanese Physicists to
receive Nobel Prize.
• Nishina Memorial Award (1959
• Morris N. Liebmann Memorial Prize (1961)
Nobel Prize 
Received Awards
• Stuart Ballantine Medal (1961
• Japan Academy Award (1965)
• Order of Culture (1974)
Is he still here?
• He is still a professor at Waseda
University
• Still lives in Japan
• Still married to his wife Masako