Mar,1916

We were founded as a specialized manufacturer only for bicycle chains in western Japan and have gradually started manufacturing other kinds of chains such as roller chains.

Jul,1934

It became "IZUMI CHAIN MFG.CO.,LTD."

May,1950

We established Tokyo Office.

Nov,1954

Our factory is licensed to manufacture at the JIS standard for bicycle chains.

Apr,1956

The Ministry of International Trade and Industry has designated our factory as a rational factory.

May,1956

Our factory is licensed to manufacture at the JIS standard for mission roller chains.

Jul,1964

New head office and plant have been constructed.

Jun,1965

The Ministry of International Trade and Industry has certified us as an export contributed company.
(since then, we have been certified every year)

Dec,1965

Increasing our capital to 125,000,000 JPY.

Sept,1969

Expanding our manufacturing facilities such as a specialized assembly machine and consecutive heat treatment furnace.

Jul,1971

Business tie-up with TSUBAKIMOTO CHAIN Co.

Dec,1971

Increasing our capital to 200,000,000 JPY.

Apr,1973

By partnership with TSUBAKIMOTO CHAIN Co. we founded TSUBAKIIZUMI HANBAI Co..
( Now it is named TSUBAKIMOTO MACHINERY Co.)

Mar,1974

Increasing our capital to 280,000,000 JPY.

Nov,1976

We started manufacturing new bicycle chains for change gears that were developed with SHIMANO Co.

Jun,1984

We innovated an automatic assemble machine for chains to expand our manufacturing capability.

Oct,1984

We innovated a Order remittance type mold and specialized press machine to expand our manufacturing capability.

Oct,1985

We started manufacturing narrow chains（burring chains）for SHIMANO Co.

Mar,1988

We cooperated with Enterprise Bureau of OSAKA Prefecture to pick up earth and sand from the construction side of KANSAI KOKUSAI AIRPORT.

Apr,1990

We innovated a large consecutive heat treatment furnace to expand our manufacturing capacity.

Apr,1995

We started manufacturing a super narrow chain for SHIMANO Co.

Jun,1998

We changed a LP gas to a town gas for heat treatment furnace.

Jun,1999

We innovated a robot for our chain assemble line.

Jul,2003

We started manufacturing new super narrow chains for SHIMANO Co..

Mar,2005

We expanded a high speed automatic precision press instrument for new super narrow chains.

Apr,2007

We started manufacturing ecology chains for TSUBAKIMOTO CHAIN Co. that correspond to RoHS commandment.

Oct,2007

We innovated a High speed automatic precision press to expand our manufacturing capability.

Apr,2008

We started manufacturing new high quality super narrow chains for SHIMANO Co.

Jan,2009

We started manufacturing small size chains for TSUBAKIMOTO CHAIN Co.

Feb,2009

We started manufacturing Solid Bush Chains that are improved in durability and mission ability.

Mar,2010

We were certified to be ISO 9001:2008.

Mar,2010

We innovated Ultimate Precision Forming Press machines.

May,2010

We started manufacturing new high quality super narrow chains(new series) for SHIMANO Co.

Nov,2011

We started manufacturing new Motorcycle chains for TSUBAKIMOTO CHAIN Co.

May,2012

We started manufacturing new high quality super narrow chains(new series) for SHIMANO Co.

Jan,2016

We started manufacturing new grease chains that are improved in durability.

Nov,2016

We received the Superior Report Corporation Award from Izumisano Tax Office.

Dec,2017

We completed construction of the PCN factory.