Ōbaku school ［黄檗宗］ ( Ōbaku-shū): One of the three principal schools of Zen in Japan, the other two being the Rinzai and Sōtō schools. Its head temple is Mampuku-ji at Uji in Kyoto. In 1654 the Chinese priest Yin-yüan came to Japan, where he became known as Ingen. In 1661 Ingen built Mampuku-ji and established what was later called the Ōbaku school. The name of this school derives from Mount Huang-po (Ōbaku), where Ingen had studied in China. Since Ingen was trained in the Lin-chi (Rinzai) school, the teachings of the Ōbaku school are identical with those of the Rinzai school except that they incorporate the Nembutsu, i.e., the invoking of the name of Amida Buddha, and other elements of the Pure Land teachings concerning rebirth in the Pure Land.