Private company

Open Interface

Open Interface is a Japanese company based in Tokyo, founded in 1992.¹

オープンインタフェース株式会社は、かつて存在した日本の企業。元々はソフトウェア開発会社だったが、末期は事実上純粋持株会社だった。² From the Japanese Wikipedia, CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

Oct 7, 1992Founded¹

HeadquartersTokyo, Japan¹
Websitewww.oii.co.jp

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Timeline

Oct 7, 1992Founded Founded¹

Links

Websitewww.oii.co.jp¹
WikidataQ11293450

Sources

The numbers on this page point here. Each one links to the record it came from.

1
WikidataOpen Interface on Wikidata
2
WikipediaOpen Interface on the Japanese Wikipedia