1971 Born in Kurashiki, Okayama Prefecture
1989 Learned from Mr. Sekiun Okada
1990 Kyoto Prefectural Pottery Technical College, Molding Department
1991 Graduate School
1994 Kyoto Municipal Industrial Research Institute
1995 Same Special Course
1996 Studied under Ryuichi Kakurezaki
1997 Okayama Prefectural Art Exhibition Encouragement Award (2006, 2009, 2010)
2000 Selected for the Okayama Prefectural Art Exhibition (2007, 2008, 2011, 2013, 2016)
2001 Selected for the Tanabe Museum of Art Grand Prize "The Art of Tea Ceremony" Exhibition
(hereafter '06, '09, '10, '13, '14, '16, '17)
2003 Became independent in Kanpu, Ushimado Town
2005 Encouragement Award at the "Tea Ceremony Art" Exhibition at the Tanabe Museum of Art (since 2012)
Selected for the Japan Traditional Crafts China Branch Exhibition (2006, 2007, 2009, 2013)
2006 Gallery Tanaka Bijutsu (Kobe)
Asuka Gallery (Okayama) (2008, 2010, 2013, 2015)
2007 Gallery Kotan (Akashi)
Tenmaya Kurashiki store
2008 Gallery Bunkindo (Gifu)
2009 Okayama Prefectural Art Exhibition, Okayama Prefectural Governor's Award
Certified as a regular member of the Japan Crafts Association
Studio IKUKO (Kurashiki) (2012, 2014, 2016)
2011 Hankyu Umeda Main Store
Nihombashi Mitsukoshi Main Store
Masahiko Kondo x Ryuhei Sagō Exhibition
Yokohama Takashimaya
2012 Okayama Prefectural Art Exhibition, Prefectural Exhibition Award
Tenmaya Okayama store (hereafter '16)
2013 Japanese Traditional Crafts Chugoku-Shikoku Branch Exhibition, Okayama Mayor's Award
Tenmaya Hiroshima Hatchobori store (hereafter '17)
2014 Yamaguchi Izutsuya
2015 Saga Tamaya
2016 Nihombashi Mitsukoshi Main Store