The annotated texts on Manyoshu he completed throughout his life, in addition to the "Manyoshu Chushaku" (Annotated Manyoshu) were produced on the basis of being used by many researchers as authentic books on Manyoshu and were used until the late Meiji period.
彼が生涯をかけて完成させた万葉集校本とそれをもとに注釈を加えた『萬葉集註釈』は、以降明治期にいたるまで万葉集の定本として多くの研究者に利用されている。