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Latest update: 27/04/2017 14:20:56

SEIEN Co., Ltd.

Our company has a presence in the market with our unique processing technology that contributes to cost reduction.

We are an automotive part manufacturer established in 1961. Our company manufactures and sells press-fit pipes and T-shaped pipes, which are attached around engines. We do business with many major companies in Japan, including Toyota Motor, Nissan Motor, Honda, Mazda, and Mitsubishi. Our products are indirectly exported to Europe, the USA, and China. We offer in-house mold design, arrangement, and manufacturing by order. Our lead time until delivery is about 45 days. We have confidence in our technical power and have acquired a patent for our unique minimum-R bending technology, which saves resources and reduces costs. This technology is used to manufacture press-fit pipes. Our products are adopted for automobiles, and also for motorbikes and agricultural machines.

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Other presentation

[Company strength]
Our company has indirectly provided products to seven Japanese automobile manufacturers (Toyota, Nissan, Honda, Mitsubishi, Mazda, Daihatsu, and Suzuki) and Ford of the USA. We design molds within the company. The lead time from order reception to mold arrangement, production, and delivery is as short as about 45 days. Our in-house platform system assures customer of safe products under production management from order reception to delivery.

[Business description]
We specialize in manufacturing and selling minimum-R bending press-fit pipes made by plastic working and T-shaped pipes made by projection welding. These pipes are used around the engines of automobiles, motorbikes, and agricultural machines. They are made of various materials, such as iron, aluminum, stainless steel, brass, nickel, and titanium. We do everything from material cutting to deburring, minimum-R bending, terminal processing for press fitting, and projection welding. Surface treatment is outsourced.

[Strength of products/technologies]
Our unrivalled minimum-R bending press-fit pipes are patented for the bending method. Press-fit pipe parts can be processed with a dimensional tolerance of 0.03 mm in external dimensional accuracy. They are used for oil pumps and other parts around automobile engines. We possess a technology for automotive piping parts that involves bonding pipes by instantaneous projection welding rather than the conventional brazing method. This contributes to increasing productivity and reducing costs.

[Representative's message]
We have been advertising our products in Nikkan Kogyo Shimbun for the past several years and recently renewed our website. The number of searches from Japan and other countries is increasing and the effect of our website renewal is gradually appearing. We have no plans to expand overseas at the present time, but we will increase our transactions with the cooperation of our current partners and trading firms.

[Company structure for market development/overseas expansion]
The manager of the general affairs department is in charge of new customers and answers inquiries from major companies. The department manager and the president handle technical matters and directly visit the customer as required, together with the person responsible for quality or manufacturing. We work together with trading firms and our current partners for overseas companies.

[Market share/Ranking]
We believe that our company is one of only several companies in Japan and abroad who can mass-produce minimum-R bending press-fit pipes by plastic working.

[Awards and media coverage]

J-Net 21 (Organization for Small and Medium Enterprises and Regional Innovation), “Vibrant SMEs of Japan” (February 28, 2014); Nikkan Kogyo Shimbun, "Constructs in-house platform system" (July 16, 2012).

ISO 9001 and Eco Action 21 certification.

[Main Clients / Business History (domestic)]
We have delivered about 150 million pipes to automobile manufacturers since about 20 years ago (including Toyota, Nissan, Honda, Mazda, Mitsubishi, Daihatsu, Suzuki, and Ford). Our products include minimum-R bending press-fit pipes attached to oil pumps and other engine parts, and T-shaped projection-welded pipes used as joints for piping from radiators. We have also delivered similar products to agricultural machine manufacturers (Kubota and Iseki).

[Main Clients / Business History (overseas)]
Our products are exported for overseas production to the USA, China, and Europe through automobile manufacturers and their first-tier partners.

This company is recommended by the following support organizations.

Kure Industrial Promotion Center
Chugoku Head Office, SMRJ

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