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| EYE LIGHTING SYSTEMS CORPORATION A joint venture with GE, established in 1973. Manufacture of lighting luminaires, power sources, ballasts and circuits. |
| TSUKUBA IWASAKI CO., LTD. Established in 1961. Manufacture and sales of luminaires and electrical appliances. |
| CHICHIBU IWASAKI CO., LTD. Established in 1985. Manufacture of Halogen lamps, Thin film products, etc. |
| KAN-ETSU IWASAKI CO., LTD. Established in 1985. Manufacture of high-pressure sodium lamp arc tubes and quartz tubes (cutting). |
| EYE ELECTRON BEAM CO., LTD. Established in 1986. Manufacture and sales of EB products, EB equipment maintenance and EB irradiation services. |
| EYE THREE MFG. CO., LTD. Established in 1988. Manufacture and sales of light poles, stands and customized lighting luminaires. |
| ITO DENKI CO., LTD. Acquired in 1997. Manufacture of explosion proof luminaires. |
| EYE GRAPHICS CO., LTD. Established in 1977. Sales of UV applied equipment and printing platemakers. |
TEITO DENKI CO., LTD. Established in 1966. Electrical work, and maintenance management of buildings and road facilities. |
| LIGHT CUBE CO., LTD. Established in 1978. Design, manufacture, sales and application of luminaires and allied products. |
EYE ONE CO., LTD. Established in 1987. Service trade for the Iwasaki Group, such as insurance agency operations. |
| KINKI LIGHT CUBE CO., LTD. Established in 1995. Design, manufacture and sales of luminaires including for emergency exit sign and of components. |
EYE TRADING CO., LTD. Established in 1988. Import of raw materials and materials, and export of products other than luminaires. |
| ITO DENKI HANBAI CO., LTD. Established in 1999. Sales of explosion proof luminaires. |
EYE LOGISTICS CO., LTD. Established in 1996. Autotruck carrier business and joint delivery. |
| IWASAKI ELECTRIC ENGINEERING SERVICE CO., LTD. Established in 1994. Maintenance & inspection, troubleshooting and remedy proposal of electric equipment. |