In 828, he wrote "Shugeishuchiin shiki-narabini-jo," and took over the private residence of FUJIWARA no Mimori, located east of To-ji Temple, and opened 'Shugeishuchiin,' a private educational facility.
天長5年（828年）には『綜藝種智院式并序』を著すとともに、東寺の東にあった藤原三守の私邸を譲り受けて私立の教育施設「綜芸種智院（しゅげいしゅちいん）」を開設。