Kuniyasu’s earliest surviving work is his illustrations to the book Hanashi no momochidori噺の百千鳥). He illustrated about a hundred books throughout his career, and designed hundreds of stand-alone prints of beauties and actors.
Kuniyasu also used the art names Ippōsai and Nishikawa Yasunobu. He died at age 39 in the seventh month of 1832. Works of his continued to be issued following his death, which may suggest they were popular.