His pen name, 'Aizan,' was given by his master, Aigai (written as '靄厓' in Japanese) TAKAKU, and contained a meaning that a disciple would go beyond a master based on the proverb of Junshi (Xun Zi) that 'the scholar may be better than the master.'
画号の「藹山」は師の高久靄厓の命名であり、「青は藍より出でて藍より青し」という荀子の格言から弟子が師を超える意が含まれている。