Kozo Tatsumi (right) / Jiro Tatsumi (left)
1976 Kozo Tatsumi born in Osaka
1979 Jiro Tatsumi born in Osaka
2000 The 2nd Bise Garden Award, Honorable Mention
2004 Hibiya Garden Show, Honorable Mention
2006 National Urban Greenery Osaka Fair, Design Division, Silver Prize
2010 Featured in the Septemeber issue of the landscape design magazine "Niwa"