The High Pressure Gas Safety Institute of Japan (KHK), a specialized institute ensuring high pressure gas safety, was established in 1963 and privatized in 1986 based on the High Pressure Gas Safety Act in order to ensure safety and prevent a disaster of high pressure gas.
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The High Pressure Gas Safety Institute of Japan
The designation is stipulated in the High Pressure Gas Safety Act. Commonly known as KHK, the acronym of Kouatsu-gasu Hoan Kyoukai, its name in Japanese.


Established in December 1963 in accordance with the High Pressure Gas Control Act (presently the High Pressure Gas Safety Act).

Governing Law

The High Pressure Gas Safety Act (Act No. 204 of June 7, 1951)

Competent Authority

The Ministry of Economy, Trade and Industry


Kenji Kondo, Chairman


There are 161 directors and employees (as of April 1,2022)

Organization Chart



Headquarters 4-3-13, Toranomon, Minato-ku, Tokyo 105-8447, Japan
Research & Development Center 2-16-4, Tadao, Machida-shi, Tokyo 194-0035, Japan
Hokkaido Branch Office 5-2-12, Kita 5-Jo Nishi, Chuo-ku, Sapporo-shi, Hokkaido 060-0005, Japan
Tohoku Branch Office 2-3-10, Honcho, Aoba-ku, Sendai-shi, Miyagi 980-0014, Japan
Chubu Branch Office 2-10-19, Sakae, Naka-ku, Nagoya-shi, Aichi 460-0008, Japan
Kinki Branch Office 1-4-19, Minamimori-machi, Kita-ku, Osaka-shi, Osaka 530-0054, Japan
Chugoku Branch Office 2-8-4, Otemachi, Naka-ku, Hiroshima-shi, Hiroshima 730-0051, Japan
Shikoku Branch Office 8-1, Hyogo-machi, Takamatsu-shi, Kagawa 760-0024, Japan
Kyushu Branch Office 2-9-28, Hakata-Ekimae, Hakata-ku, Fukuoka-shi, Fukuoka 812-0011, Japan