1975-
1978
- Start of automobile telephone base station antenna manufacturing
1981
- Building of the Kawagoe Plant and expanded production of steel towers and other steel structures
1985
- Acquisition of factory abutting the Atsugi Plant to expand applied high-frequency equipment manufacturing capabilities
![](https://denkikogyo.co.jp/wp-content/uploads/2022/08/image-308.jpg)
![](https://denkikogyo.co.jp/wp-content/uploads/2022/08/image-312.jpg)
![](https://denkikogyo.co.jp/wp-content/uploads/2022/08/image-309.jpg)
![](https://denkikogyo.co.jp/wp-content/uploads/2022/08/image-313.jpg)