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Latest update: 06/12/2016 14:37:47

Nagamura Seisakusho Co., Ltd.

We develop strong, earthquake-resistant cabinets, 19-inch racks, telephone booths, and so on.

Our main products are shielded cabinets, 19-inch racks, optical wiring boards, and other articles for communications equipment. However, we also manufacture applied products such as smoking rooms, telephone booths, and rolling carts. We ensure perfect structural designs by conducting earthquake resistance testing on almost all our products with seismic intensity 7 on the Japanese scale.

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Other presentation

[Company strength]
Our company was established in 1938 and has celebrated its 75th anniversary. We are a small company with a labor force of 80. However, we have five development and design staff, and we have been devoted to independent development and joint development with customers. We have an integrated production system based on the technologies we have accumulated for many years. It covers from design and development to punching, bending, welding, treatment, assembly, and inspection. We provide reliable and satisfactory products to customers as a factory with ISO 9001 quality management certification. We aim for coexistence with the social and local environments and nature as a factory with ISO 14001 environmental management certification.

[Business description]
Our company designs, manufactures, and sells large precision sheet metal and cabinets. Our main products are optical wiring boards, shielded cabinets, 19-inch racks, and other communications equipment.


[Strength of products/technologies]
We conduct earthquake resistance testing on almost all products shipped from our company (communications equipment cabinets, 19-inch racks, etc.) with seismic intensity 7 on the Japanese scale. We have won absolute reliance regarding our structural designs. We also develop applied products. Our smoking rooms, sluice houses, and rolling carts enjoy popularity with our customers.

[Representative's message]
Our company has been manufacturing communications equipment racks and cabinets as well as public telephone booths since its foundation. However, our customers are only in the communications equipment industry, so we are very concerned about our future development. We are thinking of developing sales channels in various directions by making use of our experience and technologies, including exchanges with other fields and industries.

[Company structure for market development/overseas expansion]
Our company still does business with major companies, such as NTT and NTT Group companies, Fujitsu, NEC, Hitachi, and Oki Electric Industry. We have an established system, although it may not be perfect. We can handle matters flexibly.

[Market share/Ranking]
Public telephone booths: 51%.
Optical wiring boards: 40%.

[Awards and media coverage]
Commended three times by the president of NTT (certificate of appreciation) and six times by the manager of NTT Materials Procurement (certificate of appreciation).


Acquired ISO 9001 and ISO 14001 certification.

[Joint research and development]
Joint development with NTT: Public telephone booth and optical wiring management system.
Joint development with NTT DoCoMo: Optical wiring board and 19-inch LTE rack.
Joint development with Fujitsu.

[Main Clients / Business History (domestic)]
We provide wiring board racks, public telephone booths, and other products with NTT specifications directly to NTT and NTT DoCoMo. We also do business directly with Fujitsu, NEC, Hitachi, and Oki Electric Industry for cabinets and racks.

This company is recommended by the following support organizations.

Kanto Head Office, SMRJ