Perhaps because he was an army surgeon, he is said to have created the Chinese-derived word Joho ('Information') stemming from the first characters of the words Reporting ('Hokoku') and Situation ('Josei'), however this theory is disputed.
軍医であったためか「情勢を報告する・させる」目的から「情報」という言葉を考え出した人物とも言われる（異論もある）。