Tokyo Picnic Club and Ito Lab. Tokyo University of Science (2011).  Picnopolis Osaka.  A part of Aqua Metropolis Osaka 2011 Festival, selected work of Osaka Canvas Project 2011 (Osaka pref.) (cooperated by Yamakin), Oct. 22-23, 2011, Osaka.
        Tokyo Picnic Club (2010). PICNOPOLIS Singapore, October 15-16, 2010, iLight Marina Bay, presented by Urban Redevelopment Authority with Smart Light Singapore, Singapore.
        Dialog in the Dark Tokyo and Tokyo Picnic Club (2010).  Picnic in the Dark.  April & June, 2010, Dialog in the Dark Tokyo, Tokyo.
        Tokyo Picnic Club (2009).  Picnopolis Yokohama.  Oct 31 - Nov 1, 2009,Zou-No-Hana Park, Yokohama.
        Tokyo Picnic Club (2009). Picnopolis Kashiwanoha Picnic Contest. May 4, 2009, Campus-City Kashiwanoha, Chiba-ken, Japan.
        Tokyo Picnic Club (2009). Bring your own picnic Exhibition: Picnic at ROCKET. Apr il 10-21, 2009, ROCKET, Tokyo, Japan.
        Tokyo Picnic Club (2008). Homecoming Exhibition of PICNOPOLIS NewcastleGateshead. Oct 10-12, 2008,Spiral, Tokyo, Japan.
Tokyo Picnic Club (2008). PICNOPOLIS NewcastleGateshead, 
          August 16 -25, 2008, EAST08, NewcastleGateshead Initiative, Newcastle 
          upon Tyne and Gateshead.
        Team PopulouSCAPE (2007). PopulouSCAPE. Daejeon FAST 
          Mosaic City, July 25 - October 7, 2007, Daejeon Museum of Art, Daejeon, 
          Korea.
        Tokyo Picnic Club (2007). Picnic Expo. May 3 - 5, 
          2007,Campus-City Kashiwanoha, Chiba-ken, Japan.
        Team PopulouSCAPE (2007). PopulouSCAPE, Festival NÉMO 
          2006: Le Rendez-vous Multimédia d'Arcadi , April 25 - May 5, 
          2007, Paris, France.
        Tokyo Picnic Club and Ito Lab at Tokyo Univ. 
          of Science (2007). Grass on Vacation 2007.April 20 - May 20, 
          2007, Campus-City Kashiwanoha, Chiba-ken, Japan.
        Tokyo Picnic Club (2007). Picnic 
          Exhibition. April 20 - May 20, 2007, UDCK, Chiba-ken, Japan.
        Team PopulouSCAPE (2006). PopulouSCAPE. '10 Years 
          After' exhibition, November 10 - 19, 2006, KAIST Daejeon, Korea.
        Team PopulouSCAPE (2006). PopulouSCAPE. Prix Ars Electronica 
          2006, August 31 - September 5, 2006, Linz, Austria.
        Team PopulouSCAPE (2006). PopulouSCAPE. August 3 - 
          October 31, 2006, BankART1929, Yokohama, Kanagawa, Japan.
        Team PopulouSCAPE (2006). PopulouSCAPE. EIZONE, July 
          22 - 31, 2006, BankART1929, Yokohama, Kanagawa, Japan.
        Tokyo Picnic Club (2005). PICNIKIOSK. Green Times, 
          November 27 - December 25, 2005, Green Culture Zone in Showa Kinen Park, 
          Tokyo, Japan.
        Tokyo Picnic Club (2005). Grass on Vacation. Anyang 
          Public Art Project 2005. November 5- December 15, 2005, Anyang, Korea.
        Tokyo Picnic Club (2005), Tokyo Picnic Club. New Scape. 
          Total Museum of Contemporary Art, August 20 - September 18, 2005, Seoul, 
          Korea.
        Ota, H., Ito, K., Okabe, T., Fukushima, K. and Kawase, 
          K. (2005), PopulouSCAPE. EXPO Plaza, The 2005 World Exposition, March 
          25 - September 25, 2005, Aichi, Japan.
        Tokyo Picnic Club (2004), Portable Lawn. Roppongi 
          Crossing: New Visions in Contemporary Japanese Art 2004. Mori Art Museum,February 
          7 - April 11, 2004, Tokyo, Japan.
        design neuob and Kaori ITO (2003), Picnic Set N4. 
          Rendez-vous Project: My Sweet Home. Spiral Garden, March 27 - April 
          14, 2003, Tokyo, Japan.
        Hiroshi HARA, Osamu TSUKIHASHI, Manabu OKOCHI, Kaori ITO, 
          Masahito OZEKI, Hideo KANATSUKA, Yasukazu KAWASE, Yu TOMITA and Takeshi 
          MARUYAMA (1995), 25 Music Stands. Japan Today. Louisiana Museum of Modern 
          Art, Denmark.