Corporate Outline

FKK was established in 1952 for the purpose of developing the pre-stressed concrete (PC) technique and promoting its industrialization. At that time, PC method was an unknown and quite new technology. However, FKK has concluded the technical license agreement with Freyssinet (ex- S.T.U.P) of France, which was the holder of the original PC patents, and FKK has successfully industrialized/commercialized this method in Japan.
FKK has continuously conducted the research and development as well as market development of PC method, and in recent years, FKK has newly developed the technologies and products in responding to the needs from the market.
Those are the anchorages and stressing equipment specialized for the epoxy-coated pre-stressing strands, the plastic made (semi-transparent) grout caps, the anchorages applied to extra-dosed bridges, the anchorages for ultra high strength pre-stressing strands,the protection tubes for extemal cable systems, etc.
For securing safety and reliability&construction more over, FKK has thrown energies to train the field engineers of our sub-licensees in establishing a license system of“Freyssinet Technician”.
Consequently, with many of the patents and know how developed by FKK and also thanks to the supports from many related people, this FKK-Freyssinet method has been applied to a variety of fields such as bridges, buildings, large containments (LNGtanks, etc.), girders for monorail system, disaster preventive structures,etc.


History
July, 1952 | Establishment of FKK • Kyokuto Kogen Concrete Shinko Co., LTD. in Tokyo |
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August, 1952 | Concluded the exclusive license agreement of the pre-stressing concrete method with S.T.U.P.(at present Freyssinet) of France for the promotion of its method in the Far East. |
August, 1952 | Granting of the first sub-license of FKK Freyssinet Method to PS Concrete Co., LTD. |
August, 1956 | Acquiring Kowa Chemical Co., LTD., which is a supplier of the railroad related products. |
September, 1964 | Opening Hiratsuka Products & Equipment Center and Technical Laboratory at Hiratsuka City. |
June, 2000 | Hiratsuka Products & Equipment Center got ISO9001. |
April, 2010 | Granting of the 70th sub-license of FKK-Freyssinet Method to Okinawa PC, Co., LTD.(Presently, FKK has 70 sub-licensees in Japan.) |
Major items of business
- Technical Development and Assistance of Pre-stressed Concrete related products and equipment.
- Fabrication and Sales of FKK-Freyssinet Method Anchorages and Rental of Pre-stressing Jacks and others.
- Fabrication, Sales and Technical Assistance of Flat Jack products and equipment.
- Technical Assistance, Fabrication and Sales of the equipment relating to“Fronte Jacking Method”
Established: in 1952
Paid in Capital: 100Million Yen
President and CEO: Kazunori Yamashita
FKK-Freyssinet Family Member Companies 70 in Japan
Engineers qualified for FKK-Freyssinet Method: 7523 in Japan (as of 01/04/2025)
Website : http://www.fkk-j.co.jp
Head Office
Address: Konwa Building, 1-12-22 Tsukiji, Cyuo-ku, Tokyo, 104-0045 Japan
Technical Laboratory (Technical Dept.) and Products and Equipment Center
Address: 37-31, Daikan-Cho, Hiratsuka City, 254-0807 Japan