Takashi Ono (mathematician)

 is a retired Japanese-born American mathematician, specializing in number theory and algebraic groups.
Early life and education.
Takashi Ono was born in Nishinomiya, Japan. He received his Ph.D. in 1958 at Nagoya University.
Career.
Ono immigrated to the United States after receiving an invitation from J. Robert Oppenheimer to work at the Institute for Advanced Study with a fellowship for the two academic years 1959–1961 and then went to the University of British Columbia to work as a mathematics professor from 1961 to 1964.
From 1964 to 1969 Ono was a tenured professor at the University of Pennsylvania. From 1969 to his retirement in 2011, he was a professor at Johns Hopkins University.
In 1966 he was an invited speaker at the International Congress of Mathematicians in Moscow. In 2012 he was elected a Fellow of the American Mathematical Society.
Personal life.
Ono's youngest son, Ken Ono, is also a mathematician and professor at the University of Virginia as well as a former triathlete. His middle son, Santa J. Ono, is the President and Vice-Chancellor of the University of British Columbia (previously, the 28th President of the University of Cincinnati) and a biomedical researcher. His eldest son, Momoro Ono, is a music professor at Creighton University.