Private company

Japan Atomic Power Company

Logo: 日本原子力発電, Public domain, via Wikimedia Commons3

The Japan Atomic Power Company (日本原子力発電, Nihon Genshiryoku Hatsuden; JAPC) is a company initially formed to jump start the commercial use of nuclear power in Japan, and currently operates two different sites. According to the official web site, JAPC is "the only power company in Japan solely engaged in nuclear energy". JAPC owns both units at the Tōkai Nuclear Power Plant and the Tsuruga Nuclear Power Plant with plans to expand at Tsuruga.2 It is headquartered in Tokyo.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

1957Founded1

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The Japan Atomic Power Company (日本原子力発電, Nihon Genshiryoku Hatsuden; JAPC) is a company initially formed to jump start the commercial use of nuclear power in Japan, and currently operates two different sites. According to the official web site, JAPC is "the only power company in Japan solely engaged in nuclear energy".2

Corporate structure

Japan Atomic Power Company sits at the top of its group. 2 entities, 1 country on record. Switch between the flow chart and the network, and select any entity to see its details.

Built from subsidiaries, stakes and holdings from Wikidata (CC0); major holders from Schedules 13D and 13G. Each entity in the chart links to its source.

What it owns

What Japan Atomic Power Company reports owning in its annual reports to the SEC: buildings, land and equipment, real estate and locations, investments, intangible assets and inventory, at the end of its latest fiscal year and a year before.

Stakes and holdings (Wikidata)

Things Wikidata records the company as owning, with the share when stated.1

Subsidiaries and ownership

Also owns

From Wikidata.1

Timeline

  1. 1957Founded Founded in Tokyo1

Sources

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

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