
- 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.