In the paper, we propose Ricceri type theorem on Fan-Takahashi minimax inequality for set-valued maps by using the scalarization method proposed by Kuwano, Tanaka and Yamada based on a certain type of the set-relations.
"A set-valued generalization of Ricceri's theorem related to Fan-Takahashi minimax inequality." Nihonkai Math. J. 26 (2) 135 - 144, 2015.