Company outline

Company outline

Company name Jonan Steel Corporation
President & CEO Representative President Shigeki Kishida
Capital ¥100,000,000
Date established March 1955

Main client

     
HANWA CO.,LTD. JFE Shoji Trade Corporation
Marubeni-Itochu Steel Inc. Metal One Corporation
NIPPON STEEL TRADING CORPORATION SHIBAMOTO & CO.,LTD.

Please don't hesitate to contact following agents if any inquiries.

History

1950

  • March1955
    Kenji Kakihara, the founder of this company, established Jonan Steel Shokai in Omori-kita, Ota-ku, Tokyo, to sell steel materials as a private management company.

1960

  • December1967
    Jonan Steel Mill Corporation purchased land at 5-13-35 Ryoke, Kawaguchi city, and started to construct a new rolling plant as a first phase of new mill constraction.
  • November1969
    The company built a steel making plant as the second phase of the construction. This plant started production with a 20-ton electric furnace. The continuous production system from the steel-making process to the rolling process started. Capital was increased to ¥48 million with investment by Tokyo Small and Medium Business Investment & Consultation Co.,Ltd.

1970

  • November1971
    Authorized to use Japan Industrial Standard (JIS) Mark indication for reinforcing bar steel.
  • June1972
    Continuous casting machine was installed.
  • August1973
    The 20-ton electric furnace in the steel-making plant was replaced by a 40-ton electric furnace. Rationalization of the rolling line was done, which capabled 15,000 tons of production per month.

1980

  • December1982
    The steel making mill and the rolling mill achieved 25,000 tons production per month.
  • November1988
    Rolling line and accuracy adjustment line were replaced by new lines. Both the steel-making mill and the rolling mill established 40,000-ton production systems.
  • September1989
    The continuous casting machine in the steel-making plant was replaced by a new machine.

1990

  • January1994
    The finishing rolling machine in the rolling plant was replaced by a block mill.
  • January1997
    The oxygen generator was replaced by a new one. The intermediate mill in the rolling plant was replaced by a block mill.
  • December1999
    ISO 9002:1994 certified and registered.

2000

  • March2001
    The Purchasing Department purchased a iron scrap radioactive ray detection monitor.
  • December2004
    The motors of the building dust collectors were changed to inverter-controlled motors to achieve energy saving.
  • May2005
    The motors of the direct-suction dust collectors were changed to inverter-controlled motors to achieve energy saving.
  • April2009
    Authorized to use Korean Industrial Standards (KS) for reinforcing bar steel. (KS D 3504)
  • January2010
    Cooling bed and maintenance facility was renewed.
  • June2011
    ISO 14001:2004 certified and registered.
  • January2012
    Tempcore facility was installed.
  • June2012
    Separately excited type flicker compensating device was replaced, and self-exciting type flicker compensating device was additionally installed.
  • January2014
    Transformer for electric furnance was replaced by a new machine. Continous casting machine was replaced by a new one.
  • February2014
    OHSAS 18001:2007 certified and registered.
  • January2015
    Ladle preheating/drying equipment was replaced by a new one. Product cutting machine was replaced by a new machine.
  • July2018
    ISO 14001:2015 certified and registered.
  • October2018
    Electrode regulating control system was replaced.
  • November2018
    ISO 9001:2015 certified and registered.
  • January2019
    Cojet gas injection system was installed.
  • March2019
    New company office completed.
  • December2019
    ISO 45001:2018 certified and registered.