Company history

Year/month History
1996 May Established Nihon Reinetsu Consult Co., Ltd.
Capital: JPY 3 million
October Changed company name to IRIE KOKEN CO., LTD.
Started operations at Kawasaki Factory.
1970 October Established Kawagoe Factory
(Shimoakasaka, Kawagoe-shi).
1973 June Started operations at Shikoku Factory
(Uchiko-cho, Ehime).
1977 October Established Osaka Office.
1980 March Capital: JPY 40 million
1991 March Established Nakayama Factory on Shikoku and started operations.
1994 July Capital: JPY 136 million
September Relocated head office
(Tsukiji, Chuo-ku, Tokyo).
1997 January Large scale reconstruction of Technical Center
(former Kawagoe Factory).
1998 September Relocated head office
(Kamiitabashi, Itabashi-ku, Tokyo).
2000 August Relocated head office
(Kokusai Building B105, Marunouchi Chiyoda-ku, Tokyo).
2001 August Reconstruction of Akasaka Building of Technical Center.
October Held ceremony marking the 35th anniversary of the foundation.
2004 May Awarded Chairman’s Prize from Japan Vacuum Industry Association:
“Development and Commercialization of differential pressure cancellation valve”
December Added Building B to Shikoku Plant Nakayama Factory.
Fully remodeled Shikoku Plant Uchiko Factory.
2005 January Completed second factory of Technical Center.
October Completed flood prevention walls of Shikoku Plant Uchiko Factory.
2006 February Relocated head office
(Kokusai Building 813, Marunouchi, Chiyoda-ku, Tokyo)
April Awarded “Outstanding Performance Prize of the Excellent New Technologies and Products Award for small and medium-sized enterprise:
“Differential pressure cancelling-type large-sized gate valve GARIVA”
June Completed new factory of overseas affiliated company CHANGZHOU IRIE PRECISION CO., LTD.
Started production of expansion pipe couplings and other components.
2007 March Certified for the fourth “Specific Research and Development Program based on the Act on Enhancement of Small and Medium Sized Enterprises’ Core Manufacturing Technology” with the development of large-sized vacuum gate valves.
June Certified as one of “300 Active Small and Medium Sized Manufacturers in Japan” (2007).
September Received “Technical Award” from Japan Vacuum Industry Association.
2008 April Shikoku Plant received ISO14001 certification.
2009 January Established Korean Branch.
July Received certificate of appreciation from J-PARC.
2010 October Awarded encouragement prize of “CHO” MONODZUKURI Innovative Parts and Components Award.
2011 March Delivered port bellows “JT-60SA” to JAEA.
August Capital: JPY 100 million
2012 February Received certificate of appreciation from RIKEN and Japan Synchrotron Radiation Research Institute (JASRI):
“Contribution to construction of X-ray Free Electron Laser (known as SACLA).”
May Head Office received ISO9001 certification.
July CHANGZHOU IRIE PRECISION CO., LTD. merged with YAMAZAKI PRECISION CO., LTD. in China.
Capital: JPY 50 million
August Increased capital of “SYSCOM CO., Ltd.” in Korea, and acquired a 2/3-plus stake in the business.
August Technical Center received Eco-Action 21 certification.
2013 April Registered IKC trademark overseas (U.S., China, Korea, and Taiwan).
May FY2012 subsidy for support of prototype development by manufacturing SMEs and micro-enterprises:
Development of high-purity glove box by vacuum replacement
November Awarded Minister of Health, Labour and Welfare’s Award for Human Resources Development.
2014 April Established IKC KOREA CO., LTD. in Korea.
2015 July Established HANGZHOU YE RONG TRADE CO., LTD. in China.
2016 May Celebrated 50th anniversary of foundation.
2018 January Company-Wide ISO 9001 is unified
August Company-Wide ISO 14001 is unified

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