1941	Born in pyongyang, Japanese nationality
1960's	Started 'Self-study Events' on sound
1970's	Created a group of objects such as echo instruments Analapos Solo sound exhibitions, Minami Gallery, Tokyo ('76) Festival d' Automne a Paris ('78)
1980's	Grant of the Rockefeller Foundation (A.C.C.) in New York ('81) Developed conceptual sound event series ＜Throwing andFollowing＞ Japan House, New York ('83) Pro Musica Nove, Bremen ('84) documenta 8, Kassel ('87) Accomplish the project "Space in the Sun", a space to listen to the sound in the nature on autumnal equinox day, Meridian line, Amino, Kyoto ('88)
1990's	Sound exhibition and performance, Xebec, Kobe ('93) Guest of the Berliner Kuestlerprogramm of the DAAD ('94) Festival Inventionen '94, Berlin Starting the sound installation series Cause and Effect Museet for Samitidskunst, Roskilde, Denmark ('94) Kuestlerhaus Bethanien, Berlin ('94) The 7th International Contemporary Music Forum of Kyoto ('95) sonambiente festival fue hoeen und sehen, Berlin ('96) Solo exhibition Stadtgalerie Saarbrueken, Germany ('97) Otodate II on the River Rhein, Strasbourg and Kehl - France and Germany, ('97) Otodate III project and performance on the lake in Enghien-les-Bains,France('97) donaueschinger musiktage '98, Donaueschingen ('98) Otodate-room for the 2nd Biennial of contemporary art in Enghien-les-Bains ,France('98) Soundculture 99, Auckland, New Zealand ('99) Klang Kunst Festival . Wiesbaden ('99) gelbe Musik, Berlin ('99 - '00)
2000's	Solo Exhibition "tubridge 99-00" ('99-'00) Singuhr, Parochialkirche, Berlin ('00) Visual Sound, the Mattress Factory, Pittsburg ('01) Concert with Ensemble Zwischentoene, Hamburger Bahnhof, Berlin ('01) Klanggelerie, SFB, Berlin ('02) Brunei Gallery Lecture Theatre, SOAS, London University ('02) Solo Performance "The Sound of Mogari III", Tokyo ('02) Otodate in Chu-wei (Taiwan) for the exhibition "The landscape of Tamsuei, the city encounters the river" with the Bamboo Curtain Studio.('02) SOUNDSPHERE 2003,British Museum, London('03) ANALAPOSPHERE2003 Osaka Arts-Aporia, Osaka('03) Izanai 2004preserved by City of Strasbourg, France('04) -public commission Resonance Musee Zadkin, Paris ('04) oto-datein Wakayama The Museum of Modern Art, Wakayama, Japan('05) NOISELESS Akio Suzuki + Rolf Juliusﾕ The National Museum of Modern Art in Kyoto('07)