Question:
Which employer did Masahisa Fujita work for in Apr, 2010?

Context:
 Masahisa Fujita works for Konan University from Jan, 2007 to Dec, 2022. 
 Masahisa Fujita works for Kyoto University from Apr, 1973 to Sep, 1976. 
 Masahisa Fujita works for University of Pennsylvania Economics Department from Jul, 1994 to Mar, 1995. 
 Masahisa Fujita works for University of Pennsylvania from Jul, 1986 to Jan, 1994. 
 Masahisa Fujita works for Institute of Economic Research, Kyoto University from Apr, 1995 to Mar, 2007.

Answer:
Konan University