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March 1991 Kuniharu Koushima founded Hopeful Film in kobe.
July 1996 Developed Prosper Dot System(Patented).
May 1998 Establishment ONE by ONE Co., Ltd. in Osaka.
July 2001 Built head office in Higashi-Osaka.
March 2002 Subsidized by the Small and Medium Enterprise Agency, on account of Prosper Sliding System.
April 2002 Established Imagome Technical Center ( I.T.C. ) in Higashi-Osaka near head office
March 2003 Installed Prosper Sliding System to Mori Building Roppongi Hills Residence.
August 2003 Awarded the Inamori Excellent Manager Award of Seiwajuku.
October 2004 Exhibited in "Kansai Fair in Milan 2004" in Milan, Italy.
November 2004 Opened Tokyo Office in Akasaka, Minato-ku, Tokyo
Februaly 2005 Exhibited in EuroShop 2005 in Dusseldorf, Germany.
May 2006 Exhibited in ICFF 2006 in New York.
October 2006 Exhibited in ICFF 2006 in Cologne, Germany.
May 2007 Exhibited in ICFF 2007 in New York.
April 2008 Exhibited in MILANO SALONE 2008 as cooperator for Curiosity in Milan, Italy.  Youtube→
May 2008 Exhibited in ICFF 2008 in New York.
August 2009 Installed Prosper AL Line System to Nissan Motor Global Headquarters Gallery in Yokohama.
April 2013 Installed aluminum louver sign and automatic door using Prosper Screw Force Engine to Emporio Armani Omotesando, Tokyo.  Youtube→
October 2013 Installed Prosper Celling System and EL Line System to Shibuya Seibu, Tokyo.
May 2014 Installed Prosper Sliding System to Mori Buillding Toranomon Hills Residence,Tokyo.
September 2014 Installed Prosper EL Ceiling System to COMPOLUX in Seibu Shibuya,Tokyo.
February 2015 Developed and installed Prosper V Line System and Prosper EL-V Line System to Gucci Daimaru Shinsaibashi, Osaka.
May 2015 Released Prosper V Line System, Prosper EL-V Line System and LED Free Angle Line Light.