After returning to Kyoto University as a professor, He successively held the captain of the Japanese Antarctica wintering party, the chairman of the Japan Mountaineering Association and so forth. Kinji Imanishi and Takeo Kuwabara were in Nishibori's mountain-climbing friends of those days. Nishibori also played the role of negotiation with the Nepal government at the time of "Manaslu-climbing" which is the first 8000 meters-classed mountain climbing in Japan.