| Nov. 1921 |
Established Nikkatsu Electric Wire Manufacturing Limited Partnership at 19 Mukoda, Gokisho-cho, Naka-ku, Nagoya, and began manufacturing and sales. |
| May 1935 |
Established the current joint stock company with capital of 100,000 yen and took over all business operations of the previous partnership company. |
| Aug. 1940 |
Relocated head office and factory to the current location. |
| May 1944 |
Became a subcontract factory of Nagoya Works, Mitsubishi Electric Corp. |
| Nov. 1945 |
Became a designated factory for the Ministry of Communications and began manufacturing outdoor rubber wire for communications. |
| Jan. 1950 |
Started manufacturing electric cables for export. |
| Sept. 1951 |
Increased capital to 2 million yen. |
| Sept. 1956 |
Started delivery of PVC outdoor communication cables to Nippon Telegraph and Telephone Public Corporation. |
| Apr. 1957 |
Increased capital to 4 million yen. |
| Mar. 1958 |
Started delivery of steel-cored PVC outdoor cables for telecommunications to Nippon Telegraph and Telephone Public Corporation. |
| Jul. 1966 |
Increased capital to 10 million yen. |
| Jul. 1966 |
Obtained permission for the use of JIS mark on our 600V vinyl electrical wires. |
| Apr. 1968 |
Became a designated supplier of OW, DV, IV, and VVF products for outsourced construction work by Chubu Electric Power Co., Inc. |
| Oct. 1970 |
Increased capital to 20 million yen. |
| Jun. 1971 |
Received the Prime Minister's Award for our efforts in promoting exports. |
| Jun. 1973 |
Obtained permission for the use of JIS mark on our vinyl cord for appliances. |
| May 1974 |
Established a joint venture, PT. EWINDO, in Bandung, Republic of Indonesia. |
| Mar. 1983 |
Started production of wire harnesses for vending machines. |
| Apr. 1985 |
Started delivery of outdoor communication cables (1P.1PS Oxotosen) to NTT. |
| Jul. 1989 |
Completed construction of new company building. |
| Aug. 1990 |
Completed construction of second factory (for the manufacture of elevator control cables). |
| Dec. 1991 |
Completed construction of dormitory. |
| Dec. 1995 |
Established a joint venture, PT. SURYAMULYABANGUNINDO, in Semarang, Indonesia. |
| Nov. 1999 |
Acquired ISO 9001 certification |
| Mar. 2000 |
Started delivery of wire harnesses for elevators. |
| Jul. 2005 |
Started business in transformers and reactors. |
| Mar. 2008 |
Completed construction of third factory (for the assembly of wire harnesses). |
| Aug. 2011 |
Completed construction of fifth factory (for the manufacture of transformers and reactors). |
| Dec. 2016 |
Acquired ISO 9001:2015 certification |
| Nov. 2021 |
Made a partnership building declaration. |
| Oct. 2023 |
Became a member of the Nagoya SDGs Platform |
| June. 2024 |
Implementation of Health declaration |
| March. 2025 |
Certified as a 2025 Healthy Business (Small and Medium-sized Business Category) |