Toshikazu Ichino founded the Irifune Kozai materials store as a private store for the purpose of steel-materials sales in the Irifune-cho, Chuo-ku, Tokyo
September, 1973
Incorporated as the Irifune Kozai Co., Ltd. (Capital: 10,000,000yen).
November, 1993
Katsumasa Ichino became President.
May, 1997
Moved headquarters to the current location (3-11-12 Hatchobori, Chuo-ku, Tokyo)
February, 1999
Certified ISO9002 (current JIS Q 9001:2015(ISO 9001:2015))
March, 2000
Established the Urayasu warehouse (current Urayasu SL plant) in Urayasu 1st Tekko Danchi
January, 2005
Established the Urayasu processing center (current Urayasu LP plant) in Urayasu 1st Tekko Danchi
December, 2005
Established the Osaka office in Nishi-ku, Osaka
May, 2007
Established the Shizuoka Irifune Kozai Co., Ltd. as a subsidiary
April, 2009
Established the Hokkaido office in Kitahiroshima-shi, Hokkaido
July, 2012
Established the Bangkok office in Bangkok, the capital of Kingdom of Thailand
March, 2014
Established the Irifune Steel (Thailand) Co., Ltd. as a subsidiary
January, 2016
Acquired Miyazawa Kogyo Co., Ltd. as a subsidiary
February, 2017
Established the Irifune Logistics Co., Ltd. as a subsidiary
May,2022
Established the Urayasu Depot in Urayasu 1st Tekko Danchi
Corporate Overview