In this way, he made his efforts to further develop the family' hereditary learning as the leading authority in the studies of the Minamoto clan and he wrote 'Kana mojizukai' (Usage of the Japanese syllabary symbols) by revising the book on the Japanese syllabic usage that Chikayuki wrote, recommended by FUJIWARA no Teika.
このようにして、源氏学（『源氏物語』を探求する学問）の権威として家学の隆盛に力を尽くし、親行が藤原定家の勧めによって著した仮名遣いの書を増補して「仮名文字遣」を著した