His research on Basho MATSUO's posthumous work came to fruition as the trilogy "Basho okina hokku shu" (Collection of hokku (haiku) of Basho the Elder), "Basho okina bunshu" (Collection of anthologies of Basho the Elder), and "Basho okina haikai shu" (Collection of haikai of Basho the Elder), which were the first anthology of Basho's works.
また松尾芭蕉の遺作を研究し刊行した『芭蕉翁発句集』『芭蕉翁文集』『芭蕉翁俳諧集』の三部作は、はじめて芭蕉の著作を集成したものである。