5287 Itoyogyo

A mid-sized manufacturer of secondary concrete products such as manholes. Founded in 1950 in Akashi City, Hyogo Prefecture, as a building materials company, the company uses the Bicon manufacturing method, which hardens cement through vibration and compression, achieving strength with less cement used. With the demand for manholes declining due to the completion of sewerage systems, the company is focusing on gutters such as line water conduction blocks that take bicycle safety into consideration, as well as environmentally friendly oil-water separators. In addition to small-scale "utility-pole free" products, the company is also focusing on products for dealing with heavy rain, such as curbside solar panels and manhole covers that prevent lifting.