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 & SUMIKIN BUSSAN CORPORATION SHIBAMOTO & CO.,LTD.

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

History

1950

  • 1955March
    Kenji Kakihara, the current chairman, established Jonan Steel Shokai in Omori-kita, Ota-ku, Tokyo, to sell steel materials as a private management company.

1960

  • 1967December
    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.
  • 1969November
    The company built a steel making plant as 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 was started. Capital was increased to ¥48 million with investment by Tokyo Small and Medium Business Investment & Consultation Co.,

1970

  • 1971November
    Authorized to place Japan Industrial Standard (JIS) indication on reinforcing bar steel.
  • 1972June
    Continuous casting machine was installed.
  • 1973August
    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 cabled 15,000 tons of production monthly.

1980

  • 1982December
    The steel making mill and the rolling mill achieved monthly production of 25,000 tons each.
  • 1988November
    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.
  • 1989September
    The continuous casting machine in the steel-making plant was replaced by a new machine.

1990

  • 1994January
    The finishing rolling machine in the rolling plant was replaced by a block mill.
  • 1997January
    The oxygen generator was replaced by a new one. The intermediate mill in the rolling plant was replaced by a block mill.
  • 1999December
    The plants achieved conformity with ISO 9001:1994 quality system examination, and were certified and registered.

2000

  • 2001March
    The Purchasing Department purchased a iron scrap radioactive ray detection monitor.
  • 2004December
    The motors of the building dust collectors were changed to inverter-controlled motors to achieve energy saving.
  • 2005May
    The motors of the direct-suction dust collectors were changed to inverter-controlled motors to achieve energy saving.
  • 2009April
    Authorized to place Korean Industrial Standards (KS) indication on reinforcing bar steel. (KS D 3504)
  • 2009December
    The plants achieved conformity with ISO 9001:2008 quality system examination, and were certified and registered.
  • 2010January
    Cooling bed and maintenance facility was renewed.
  • 2011June
    The plants achieved conformity with ISO14001:2004 quality system examination, and were certified and registered.
  • 2012January
    Tempcore facility was installed.
  • 2012June
    Separately excited type flicker compensating device was replaced, and self-exciting type flicker compensating device was additionally installed.
  • 2014January
    Transformer for electric furnance was replaced by a new machine.Continous casting machine was replaced by a new machine.
  • 2014February
    The plants achieved conformity with OHSAS 18001:2007 quality system examination, and were certified and registered.
  • 2015January
    Ladle preheating/drying equipment was replaced by a new machine.Product cutting machine was replaced by a new machine.
  • 2016January
    Primary inverter facility for rolling machine motor was renewed.