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Environmental commitments

In order to continue living as one with the earth, we always conduct ourselves with consideration for the environment.

Okayama Factory
Environmental concept of the Okayama Factory:
triple or quadruple safety countermeasures

The Okayama Factory is located at the center of a residential downtown area, where we always keep in mind consideration for the environment so that safe operations can be performed. Our concept established under such circumstances is "triple or quadruple environmental safety countermeasures."
For example, an explanation can be given assuming liquid spillage from a plating line: Since a "receiving pan" is provided under a treatment tank of the plating line, even if liquid is spilled, the "receiving pan" prevents the leakage from spreading. If the leakage exceeds the capacity of the "receiving pan," "banks" of 10cm in height surrounding the plating line prevent the leakage from spreading. Even if the leakage spills over these "banks," the floor itself prevents the leakage from flowing down stairs and out of service doors because the floor is sunken to simulate the effect of banks. Should the leakage extend outward as it cannot be prevented due to a large-scale earthquake or other calamity, "ditches" and "banks" provided at the boundaries between the factory premises and roads will prevent it from flowing outside the factory. In other words, the triple or quadruple environmental safety countermeasures are a mechanism in which spilled liquid, treated wastewater, or the like cannot flow outside the factory until passing through three or four check points.
Triple or quadruple environmental safety is secured in this factory by making full use of digital and automatic measuring devices in addition to the analog means just mentioned.

Wastewater treatment facilities

Our wastewater treatment facilities feature 100% aboveground installation of all treatment tanks. Conventionally, we adopted the underground pit system, but this system required emptying out the underground tanks and inspecting the tanks for cracks and checking the linings several times a year as periodic inspection for underground seepage. In order to continuously monitor the tanks visually, operation of the underground tanks were completely ceased and aboveground tanks were installed from the perspective of a proactive initiative to meet the requirements of the "Soil Contamination Countermeasures Act."
Although it was a significant investment while cost reduction was severely required, we spent three years from 2003 reviewing our wastewater treatment facilities, and remodeled the facilities for completed "visualization."

Features of the building: First Okayama Factory (completed in 2001) ...
Original 21st century environment-responsive factory
[Consideration toward the local community]

Our factory is equipped so as not to prevent sound sleep even for 24-hour operations, and includes sound-proof windows, sound-proof walls, and light-blocking roll-up curtains.

[Consideration toward the employees]

A pleasant working environment has been ensured through the installation of air intake ducts and exhaust air ducts to create air flow.

[Consideration toward the environment] Floor:

Water-proof asphalt has been placed between a 5-layer coating. Underground seepage has been thoroughly prevented, and the floor itself serves as a "receiving pan." Also, our facilities are designed to be supported by their own weight alone because cracking accelerates by anchor bolts, etc., that would fix facilities in the floor.

Wastewater treatment:

Wastewater is treated by separating into seven channels to reduce environmental load.

Tochigi Factory (completed in 2008)
Environmental safety concept of the Tochigi Factory:
environmentally all-in-one factory

The environmentally all-in-one factory is based on the concept of consolidating all necessary functions from wastewater treatment facilities, chemical chambers, scrap yards, through to truck yards, etc., in the factory.
This requires no piping outside the factory for which measures would be difficult to take against leakage, and this prevents spilled liquid from flowing outside the factory accidentally due to rollover during chemical transport, etc. In addition, our know-how and countermeasures having been accumulated at the Okayama Factory are fully incorporated in the building and wastewater treatment facilities.
As the first floor, which is our primary production location, is occupied by wastewater treatment facilities, productivity is somewhat sacrificed, but this Tochigi Factory is a consequence of thinking that we who will continue living as one with the earth should give top priority to environmental safety measures rather than productivity.


All comings and goings to the factory and respective sites in the factory, and taking-out of chemicals, etc., are controlled by factory security through IC cards.