Until the end of the Showa 30's, Japan, one of the world's leading earthquake-prone countries, could not build skyscrapers with more than 20 floors. However, in the 1940s, with the improvement of building technology, it became possible to build skyscrapers over 30 floors one after another, including the Kasumigaseki Building and the Hamamatsucho Trade Center Building. Until then, the current situation was that the subcontractor was instructed by the person in charge at the general contractor site to carry out the electrical equipment work (electricity for construction) for the construction work, which was one-handed for the main construction work. However, due to the increase in size due to the skyscrapers of buildings, there was a situation in which rational equipment could not be implemented in terms of construction efficiency and safety management with one-handed work of the subcontractor. Therefore, due to the need for planned construction electricity construction by specialists, accumulation of know-how, and centralized safety management, a new industry called construction electrical equipment construction business (commonly known as temporary electricity) will be born in Japan. It becomes. At that time, we were operating as a subcontractor of electricity for constructing small and medium-sized buildings, but we felt the future in the new industry of construction electricity, which was born with the upsizing of buildings that will come in the future, and this unknown I decided to push forward to the industry of. Starting with the Keio Plaza Hotel in the early 1965s, we have been working on large-scale properties that represent the early days of Japanese skyscrapers, such as the KDD headquarters building (currently the KDDDI building). Even now, with the pioneering spirit of the early days in mind, pursuing customer needs and convenience, we will make new attempts every day as the only comprehensive construction equipment specialist in Japan that does not only electricity but also water supply and drainage work for construction work. We are challenging. Copyright © Koshin Tech Co., Ltd. All Rights Reserved.