Private company

Koken (Japan)

Koken (Japan) is a Japanese company based in Bunkyō-ku, founded in 1959.¹

Last updated Oct 21, 2026.

Overview

1959Founded¹

HeadquartersBunkyō-ku, Japan¹
Websitewww.kokenmpc.co.jp
Legal formkabushiki gaisha¹

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Koraku Mori Building — Photo: 妖精書士, CC BY-SA 4.0, via Wikimedia Commons²

Timeline

1959Founded Founded¹

Links

Websitewww.kokenmpc.co.jp¹
Websitewww.kokenmpc.co.jp/english¹
WikidataQ104480922

Sources

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

1
WikidataKoken (Japan) on Wikidata
2
Wikimedia CommonsKoken (Japan) photo by 妖精書士, CC BY-SA 4.0