|Based in||San'un Zendo|
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Ryoun Yamada, aka Yamada Ryoun or Yamada Masamichi, the son of the late Yamada Koun, is the current Zen master of San'un Zendo in Kamakura, Japan and the Abbot of the Sanbo Zen school of Zen Buddhism. Sanbo Zen is a lay organization of Zen, so Yamada also worked at Mitsubishi Bank and Mitsubishi Securities. Currently he heads the Itoki Corporation. As of the late 1990s, Yamada was returning to Japan only a few times each year.
- Habito, xix
- Barnhart, 146
- Barnhart, Bruno; Yuese Huang (2001). Purity of Heart and Contemplation: A Monastic Dialogue Between Christian and Asian Traditions. Continuum International Publishing Group. ISBN 0-8264-1348-X.
- Habito, Ruben L.F. (2004). Living Zen, Loving God. Wisdom Publications. ISBN 0-86171-383-4.