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Latest update: 22/11/2017 02:10:16

Koushin Kasei Seisakusho Co., Ltd.

We differentiate ourselves from other manufacturers with transparent materials, parts with complicated shapes, and manufacturing technology know-how.

We handle transparent materials, which require a strict production system, as well as plastic parts for automobiles and OA, which require high quality standards. We have advantages in our integrated processing system mainly for large parts from product design to molds, molding, surface finishing, and assembly. Other advantages are the know-how and technology we have proven in our track record of deliveries to major manufacturers. Our mold models are made by machining, casting, and photofabrication, and we reduce costs by focusing on overseas production. We also handle part manufacturing without using molds. We make proposals for new surface finishing using laser and masking technology in addition to plating, body painting, and indium deposition.


Other presentation

[Company strength]
Our film insert molding supports various film types, such as wood material, Alcantara, metallic film, and wide film. We also handle various decorative technologies such as painting, hydraulic copying, TOM, plating, and sputtering.

[Business description]
We have established a system that enables us to take on one-stop orders covering from product design to molds, molding, surface finishing, and assembly. We focus on parts for large vehicles. We can also offer surface finishing in the field of large exterior parts, including plating, body painting (4C1B), and indium deposition.

Plastic molding

[Representative's message]
We receive inquiries directly from overseas customers regarding our innovative technologies. We hope to make great strides in our business by making use of J-Good Tech.

[Company structure for market development/overseas expansion]
We want to promote our technological advantages to customers in various fields by participating in the exhibitions, and so on.

[Awards and media coverage]
Our company has often appeared in the media. There have been reports on our history of participation in international trade fairs, reports on TV programs, and introductions of our products in magazines and newspapers. We often participate in various exhibitions in Japan and abroad. We have been interviewed by various broadcasting stations, including NHK and Fuji TV, and have appeared in 14 broadcasts to date. Our company has also been introduced in many newspapers and magazines (

ISO 9001 and ISO 14001. 

[Intellectual property]
We produced our Tennâge product with our allied company Zeroone Products.

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ