Designed by Gene Eidy in 1968 as graduate student at Cal State Long Beach. [Devroye] Released with Lettergraphics as Sukiyaki. [Lettergraphics 1976] Not yet shown in 1970. [Lettergraphics 1970]

Digital interpretations include Hirosh (Jonathan Smith, 1993, shareware), Itto (Chris MacGregor, 1994), and, with credits to the original designer and under the original name, by Steve Harrison (2020).