2021
| Mar | Representative office in Bangkok, Thailand, opens |
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2020
| Aug | Construction of new factory and office building in the Netherlands completed |
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| Jul | Selected as one of the New Global Niche Top Companies 100 |
| May | Innovative Partnership Agreement awarded for the World Heritage-listed Canal renovation |
| Apr | Two ECO Cycle completed at Kawasaki station, Kanagawa Prefecture |
2019
| Mar | Opening of New York Head Office of Giken America Corporation |
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2018
| Oct | Opening of “Press-in Training Center” at Kansai Factory Market capitalization of GIKEN hits 100 billion Japanese Yen |
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| Aug | Renewal of “ECO Park” at Kochi Head Office |
| May | Opening Sales Office in Hokkaido |
| Jan | The first installment of “ECO Park” at OTEPIA in Kochi City |
2017
| Dec | Stock acquisition of J Steel Group Pty Limited. |
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| Aug | Completed two aboveground type ECO Cycles in Roppongi, Minatoku, Tokyo. |
| Jun | Listed on Tokyo Stock Exchange Class Ⅰ. |
| Apr | Delivered the SILENT PILER model SW100 to Australia for the first time. |
| Jan | Started bridge foundation construction by Press-in Method in Bangladesh (ODA project) |
| Jan | GIKEN group's 50th anniversary. |
2016
| Oct | Launch of the SILENT PILER "F301-G1000, F401-G1200 and F501-G1500" for Gyropress Method. |
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| Jul | Delivered the SILENT PILER to Myanmar Government. |
| Mar | Stock acquisition of CITEC INC. |
| Feb | Completed two ECO Cycles in Shinbashi, Minatoku, Tokyo. |
| Feb | Establishment of Kanto Factory in Chiba. |
2015
| Dec | Completed two ECO Cycles in the plaza in front of the Kyoto city hall. |
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| Sep | Test operation of a share cycle system utilizing the MOBILE ECO Cycle started in Fujisawa, Kanagawa Prefecture. |
| Aug | 5.84431 billion yen increase in capital due to new issue of shares. |
| May | Launch of the SILENT PILER model “F111”. |
| Jan | Completed two ECO Cycles in the plaza in front of the South exit of Kyoto station. |
| Jan | Developed the “Tsunami simulator”, an experimental device for tsunami. |
2014
| Dec | Launch of the SILENT PILER model “F201”. |
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| Nov | Establishment of Kochi Factory 2. |
| Oct | Announced the development of SILENT PILER F111 and F201. |
| Sep | Celebrate 3000th SILENT PILER produced. |
| Aug | Launch of the SILENT PILER model “F101”. |
2013
| Nov | Launch of the SILENT PILENT model “F301” for 900mm Hat-shaped Sheet Pile. |
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| Jul | Listed on the TSE2 through market integration. |
2012
| Aug | Launch of the Gyro Piler GRV2540 for large diameter tubular pile. |
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| Aug | The largest ECO Cycle in the Kansai area was completed at Minamisenri in the city of Suita. |
2011
| Oct | Completed a development prototype of the portable “MOBILE ECO cycle”. |
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| Sep | Open Shanghai Office. |
| Aug | Launch of the Zero Piler JZ100A. |
| Aug | Launch of the SILENT PILER ECO600S equipped with versatile driving assistance. |
| Jul | Open the Reconstruction Support Office of the Natural Disaster Defence Engineering Headquarter in Sendai City, Miyagi Prefecture, Japan. |
| Apr | Establishment of the Natural Disaster Defence Engineering Headquarter. |
| Mar | Renovated the ECO Cycle No. 1 unit in Kochi University of Technology to the latest system. |
2010
| Jan | Opening of “IPC: International Press-in Center” in Tokyo, Japan |
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2009
| Oct | Launch franchise-style business partnership “GM1” in which Giken provides total support for pile driving business activities to the members. |
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| Jan | Held the GM2 investiture ceremony and first GM meeting. |
2008
| Aug | Developed a new ECO Cycle, and received orders from Hachioji and Chiba cities. |
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| Jul | Launched the “Memorial Forest Project”. |
| May | Launch of the Silent Piler model “ECO700S” & “ECO1400S” equipped with versatile driving assistance. |
| Apr | Launch franchise-style business partnership “GM2” in which Giken provides total support for pile driving business activities to the members. |
2007
| Jul | Launch of the SILENT PILER model “ECO400S” equipped with versatile driving assistance. |
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| Feb | Establishment of IPA: International Press-in Association |
2006
| Jul | Japan’s largest mechanical underground bicycle park comprising 8 ECO Cycles was completed at Mitaka City in Tokyo. |
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2005
| Jul | Launch of the SILENT PILER model “ECO900” for 900mm Hat-shaped Sheet Pile. |
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2004
| Aug | Launch of the SILENT PILER model “ECO82”. |
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2003
| Dec | Complete the world-first application of “Office Building with Versatile Foundation” in Tokyo, Japan. |
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| Apr | Launch Giken Total Support System for pile driving business activities “GTOSS”. |
2002
| Jun | Launch of the next-generation SILENT PILER model “ECO100”. |
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2001
| Aug | Launch of the water jet system “Piler Jet System”. |
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2000
| Dec | Centralize sales business through promotion of IT. |
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| Jun | Moved the Tokyo headquarters to Ariake, Koto-ku. |
1999
| Dec | Establish Giken America Corporation in Orlando, Florida. |
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| Apr | GIKEN EUROPE opened a new office in Berlin. |
1998
| Nov | Opening of Singapore Office of Giken Seisakusho Asia Pte., Ltd. |
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| Jun | Complete Giken automated underground bicycle parking system “ECO Cycle” in Kochi University of Technology. |
1997
| Aug | Launch if the Crush Piler, “SC100”, equipped the integral augering system. |
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| Mar | Celebrate 2000th Silent Piler produced. |
1996
| May | Establish G & B Co., Ltd. |
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| Mar | Establish M & M Co., Ltd. |
| Jun | Establish Giken Seisakusho Asia Pte., Ltd. in Singapore. |
1995
| Nov | Launch of the Super Auto, “SA75” & “SA100”. |
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1994
| Dec | Complete Giken automated underground car parking system “ECO Park”. |
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| Nov | Open Sales office in Nigata. |
| Aug | Giken Seko Co., Ltd. opened a Tokyo sales office in Ariake, Koto-ku. |
| Jun | Documented the Five Construction Principles. |
| Jan | Celebrate 1500th Silent Piler produced. |
1993
| Aug | Present the idea of “Construction Revolution” in public. |
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| May | Listed on Osaka Stock Exchange Class II. |
| Jan | Complete Kansai factory. |
1992
| Oct | Opening of new Tokyo Head Office in Shinagawa, Tokyo, Japan. |
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1991
| Oct | Launch of the Auto Piler model “AT90” & “AT150” IC card-controlled automatic driving machine. |
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| Jul | Establish Giken Europe B.V. in Almere, the Netherlands. |
| Apr | Giken stock registered for over-the-counter sale. |
1990
| Nov | Celebrate 1000th SILENT PILER produced. |
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| Jan | Open Sales office in London. |
1989
| Sep | Open Sales office in Hokkaido. |
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1988
| Sep | Launch of the SILENT PILER Model “TP333”. |
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1987
| Oct | Celebrate 500th SILENT PILER produced. |
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| Jul | Establishment of JPA: Japan Press-in Association. |
| May | Launch of the City Piler “FT70”. |
| May | Complete Kochi head office and factory. |
1986
| Apr | The press-in method was officially adopted by the Ministry of Construction for the “Civil works standards for estimation”. |
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| Apr | Export the 1st SiLENT PILER to a foreign country- Sweden. |
1985
| Nov | Launch of the SILENT PILER Model “KGK130C4” with the corner 4 function. |
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| May | Opening of Tokyo Factory. |
1983
| Sep | First overseas construction project undertaken in the former West Germany. |
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| Apr | Open Sales office in Hiroshima ＆ Shikoku. |
| Apr | Display the SILENT PILER in the 20th International Construction Machinery Fair “BAUMA ’83” in Munich. ( Also displayed every 3 years until ’95 ). |
1982
| May | Launch of the SILENT PILER Model “KGK130-N”. |
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| May | Installed a radio-controlled system on the SILENT PILER |
1981
| Aug | Kochi Giken Consultant Ltd. changed its name to Giken Seko Co., Ltd. |
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| Jul | Open Sales office in Nagoya. |
| Jun | Launch of the SILENT PILER Model “KGK80C”. |
1980
| Oct | Open Sales office in Fukuoka. |
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| Sep | Open Sales office in Sendai. |
| Jan | Obtained basic patent for the Silent Piler. |
1979
| Nov | Open Sales office in Tokyo. |
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| Jun | Launched a national SMP association. |
1978
| Sep | Open Sales office in Osaka. |
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| Jun | Launch of the SILENT PILER model “KGK-100H”. |
| Jan | Giken Seisakusho Co., Ltd. incorporated. |
1975
| Jul | Launch of the First SILENT PILER. |
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1971
| Aug | Kochi Giken Consultant became incorporated. |
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1967
| Jan | Establish Kochi Giken Consultant and start civil engineering business. |
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