Claim: Tosio Kato aworked in the field of mathematics where he became known for "Kato's conjecture", a mathematical problem posed in 1953 and finally solved in 2001.
Evidence: Kato's conjecture
Heinz–Kato inequality
Kato Rellich Theorem Many works of Kato are related to mathematical physics. Kato initially posed the problem in 1953. The problem remained unresolved for nearly a half-century, until it was jointly solved in 2001 by Pascal Auscher, Steve Hofmann, Michael Lacey, Alan McIntosh, and Philippe Tchamitchian.