About us

HISTORY

From a manufacturing company
to a total solution provider

Kawakin Core-Tech was established in 1948 as Kawaguchi Metal Industry Co., Ltd.
Since then, we have remained at the forefront of casting and bridge product development in Japan.
In 2023, we celebrated our 75th anniversary.

Just as we have transitioned from a manufacturing company to a Total Solution Provider, we will continue to evolve to pursue safety and security for Japan and the world in the next 100 or 200 years.

1948
1948

1948

Kawaguchi Metal Industries Co., Ltd. was established and began manufacturing cast metal products.

The predecessor of Kawaguchi Metal Industry Co., Ltd. was Kawaguchi Steel Co., Ltd., a munitions factory established in 1937. The current Kawaguchi Metal Industry No. 1 Factory was constructed at the time of its establishment and is still operational at the same location. After World War II, the first president of Kawaguchi Metal Industry took over the factory of the dissolved Kawaguchi Steel Co., Ltd., and established Kawaguchi Metal Industry Co., Ltd. as a casting company for the private sector.

1948
1948

1948

Kawaguchi Metal Industries Co., Ltd. was established and began manufacturing cast metal products.

The predecessor of Kawaguchi Metal Industry Co., Ltd. was Kawaguchi Steel Co., Ltd., a munitions factory established in 1937. The current Kawaguchi Metal Industry No. 1 Factory was constructed at the time of its establishment and is still operational at the same location. After World War II, the first president of Kawaguchi Metal Industry took over the factory of the dissolved Kawaguchi Steel Co., Ltd., and established Kawaguchi Metal Industry Co., Ltd. as a casting company for the private sector.

1958 1958
1958

1958

Commenced the design and manufacture of bridge bearings.

In the lead-up to the 1964 Tokyo Olympics, Japan embarked on a massive social infrastructure development push. Large-scale projects like the Tokaido Shinkansen bullet train line, Tomei Expressway, and Shuto Expressway were launched in rapid succession. As a nation with numerous rivers, bridge construction became a national priority in Japan, driving a surge in demand for bridge components. At that time, cast metal was the standard material for bridge bearings. Recognizing this growing need, Kawaguchi Metal Industry Co., Ltd. began designing and manufacturing steel bridge bearings.

1961
1961

1961

Traded on the Second Section of the Tokyo Stock Exchange. Established a new steel factory.

1967
1967

1967

Established Osaka factory in Itami city.

1971

Commencement of manufacturing of ductile cast iron for hydraulic equipment.

1975

Commencement of exporting special steel casting products to the United States.

1979
1979

1979

Koyo Seiko Co., Ltd. joined the group.

1985

Opened Osaka Branch / Established Hyogo Factory.

1989

Nonagase Co., Ltd. joined the group.

1995
1995

1995

The Great Hanshin Awaji Earthquake occurred.

Up until then, cast iron had predominantly been the material used for bridge bearings. However, everything changed dramatically following the Great Hanshin-Awaji Earthquake on January 17 of the same year. During the earthquake, many cast iron bearings suffered damage beyond what was anticipated, leading to significant effects on bridges. Consequently, seismic isolation capabilities became a necessity for bridge bearings. This earthquake marked a significant turning point for us, prompting the initiation of the development of rubber bearings. Since then, our business development has accelerated in both cast metal and rubber bearings.

1999
1999

1996

Established a rubber bearing production line at the main plant.

1997

Opened Nagoya Branch. Initated the production and sales of modular expansion joints and unseating prevention devices.

2007
2007
1999
1999

1999

2400TF large biaxial testing machine installed at the main factory. Achieved the International Quality Assurance Standard "ISO9001".

2004

Opened Fukuoka Branch. Established Kawakin Techno Solution Co., Ltd.

2007
2007

2007

Opened Ibaraki Factory.

2008

Established Kawakin Holdings Group. Opened Sendai Branch.

2009
2009

2009

Kawaguchi Metal Industries Co., Ltd. was split into separate identities. Established and succeeded to the business of Kawakin Core-Tech Co., Ltd. Established Kawakin Business Management Co., Ltd.

2010

Opened Hanoi Representative Office.

2012
2012

2012

Established KAWAKIN CORE-TECH VIETNAM CO., LTD. Established Sapporo factory (Sapporo Branch). Closure of the Hyogo factory.

2013
2013

2013

Head Office relocation.

2016
2016

2016

Dynamic Isolation Systems Inc. in the United States joins the Kawakin Holdings Group.

2022
2022

2019

Opened Nagoya Branch.

2022
2022

2022

Announcement of the new brand vision "THE ANSWER: The best answer for a resilient future."

2022
2022

1000TF/3500TF biaxial testing machines (the largest in Japan) installed at the Ibaraki Factory. Kawakin Techno Solution Co., Ltd. merged with Kawakin Core-Tech Co., Ltd. Registered First-class architect's office.

2023
2023

2023

Opened Istanbul Branch.

In collaboration with Istanbul Technical University, research began in 2022 to introduce buckling restrained braces ( a type of earthquake-resistant structural element) into the market. During this joint research, the devastating Turkey-Syria earthquake occurred in February of the same year. It is said that the increase in damage was partly due to the lack of proper building standards in Turkey. Following the earthquake, there was a request from local facility and road managers for the early deployment of the buckling restrained braces under development and our seismic isolation, vibration control, and earthquake-resistant devices. In response, we established an Istanbul branch office.