Toshio Murata was a student of Mises’s at New York University and is the Japanese translator of Human Action. He is singularly responsible for the whole of the Misesian presence in Japan today. A young of disciple of his is Hiroyuki Okon, who has spent many wonderful weeks at the Mises Institute and is currently on the faculty of economics at Kokugakuin University.
At this university, Murata gave a lecture on Mises vs. Hayek on catallaxy. Murata is very concerned to retain the Misesian definition of the term as the order brought about through mutual adjustment of individual activities of exchange based on monetary calculation. He offered this as a corrective to Hayek who seem to present catallaxy as order without specifying the essential element of human choice and action.
Here is an photo after the lecture.