 In 1876, he gave the rights to his studio to his assistant Oda Nobumasa and became a lecturer at the Japanese Military Academy, lecturing on photography and lithography.In 1881, a recurrence of his tuberculosis, first caught around the age of fifteen, forced him to leave his post at the Military Academy.Nevertheless, he then founded the Shashin Sekiban-sha (Photolithography Company), he continued to paint, and about this time he created what he called "shashin abura-e" ( in the orthography of the time, now) or "photographic oil-paintings", in which the paper support of a photograph was cut away and oil paints then applied to the remaining emulsion.