We're the leading company in Prototype world with latest 3D Printing technology. Best in Rapid Prototype Casting and world class in Mass Production.


1973: Founded

1978: Recognized as Pvt. Ltd.

1989: Sand Mould Prototype Factory TCK Pvt. Ltd. Established

1991: Wooden Mould Plant, Moderated Shounan Pvt. Ltd in Hiratsuka, Kanagawa Prefecture established.

1993: Commodity production of Die Cast Aluminium parts Started.

1998: 3D CAD introduced and digitalization of work started.

2002: Achieved ISO9001 Certification.

2003: Company's NEXT Program started.

2004: NEXT K1 Program, Miyagi

Factory at Ogawara, Miyagi Prefecture started.


2005: NEXT K2 Program, Yokohama Factory at Totsuka, Yokohama started.

2007: NEXT K3 Program, Seishou R&D Factory at Odawara, Kanagawa.

Kanagawa Investment System; Investment Certified.

Next Generation Technology introduced; Lamination Method Casting Technology

2008: Certification approved by Ministry of small and medium enterprises.

Large thin-walled die casting production method developed

2009: Forward to Eco Stage Certification.

2012: NEXT KI Program, Koiwai India; forward to first International step.

NEXT Program is a Concept (to improve the Foundry Tradition) on the basis of which Koiwai is realizing its corporate image.