Private company
Sumitomo Electric Optifrontier
Sumitomo Electric Optifrontier is a Japanese company based in Sakae-ku, founded in 1939.1
住友電工オプティフロンティア株式会社（すみともでんこう-）は光ケーブル・光通信機器の専門メーカー。住友電気工業の100%子会社。2 From the Japanese Wikipedia, CC BY-SA 4.0
Last updated Oct 21, 2026.
Overview
Dec 23, 1939Founded1
- HeadquartersSakae-ku, Japan1
- Websitewww.toyoden.co.jp
Timeline
- Dec 23, 1939Founded Founded1
Links
- Websitewww.toyoden.co.jp1
- WikidataQ11321506
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1
- 2