He continued his efforts to systemize organization of Urasenke's tea ceremony by setting up a national organization of fellow members, named Tanko-kai, and also by obtaining corporate status for the head of the school and his family, so Urasenke is now proud of being the largest scale school among many tea ceremony schools.
全国統一の同門組織として社団法人淡交会を結成し、また家元を財団法人化するなど、裏千家茶道の組織化も引き続き行われ、流派別の茶道人口としては最大規模を誇るようになった。