Oi Electric Co., Ltd.

Oi Electric Co., Ltd. provides information and communication equipment and related services for social infrastructure in Japan. Its offerings include transmission and monitoring devices such as optical transport network platform systems, optical network equipment, media converters, and contact information transmission equipment. The company also supplies electronic measuring instruments, including multifunctional level variation recorders, line noise measuring instruments, analog level meters, ISDN line analyzers and testers, selective level meters, frequency selective level meters, receiving sensitivity analyzers, bit error rate testers, transmission characteristic measuring instruments, variable resistor attenuators, circuit inspection testers, tone channel selective level meters, security and monitoring systems, remote measurement and sensing systems, and wireless application systems. In addition, it manufactures and sells related software, constructs and maintains communication equipment, optical networks, and CATV systems, and operates restaurants, building management, and temporary staffing services. Incorporated in 1950, the company is headquartered in Yokohama, Japan.