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Joining the Japanese Armor Society will give you plenty of opportunity:



  • Quarterly magazine Katchu Bugu Kenkyu (in Japanese)

  • Partial translation in English of the main articles of the magazine

  • Annual Yearbook in English

  • Discount on new books published by the association (e.g. Juyo Bunka Shiryo Zuroku)


Events in Japan

  • Attend the regular meetings held in Tokyo or in any of the other branches of the association (Hiroshima, Kinki, Okayama, Fukushima, Nagano, Tokai)

  • Participate in the annual national assembly meeting of the association

  • Network with armor makers, researchers, and collectors

  • Attend armor exhibitions (sometimes at a discount if co-organized by the association) with special seminars

International Events

  • Attend the events that will be organized by the western branch of the society (symposium, special museum visits, etc)

How to become a member

The membership fee for one year (starting every year on April 1st).

You can subscribe simply filling the form on this page and paying the fee via Paypal at or clicking the "Buy Now" button here.

Annual fee, covering all costs, are the following:

18,820 yen for new international members (around 160€)
15,700 yen for annual international renew (around 130€)

Become a Member
Annual fee 18,820¥ (~120/140 €)

Thank you! You can now click on the BUY NOW button to finalize your membership

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What is the difference between the Japanese Armor Society and the NKBKHK?

The Japanese Armor Society (JAS) is the Western branch of the Nihon Katchu Bugu Kenkyu Hozon Kai (NKBKHK) or The Association for the Research and Preservation of Japanese Helmets and Armor. The NKBKHK  has several local branches in Japan, all under the auspices of the mother organization. In 2016, the NKBKHK mandated the establishment of a Western branch in order to increase access and grow membership internationally. Thus, the JAS was formed in April 2017, with the full blessing and backing of the NKBKHK.

With membership in the JAS, one is automatically a member of the NKBKHK without any additional cost. However, if someone prefers to join one of the local branches of the NKBKHK instead (without joining the JAS), then that member assumes the responsibility of managing his membership directly with the local office, including all communications. Please also note that members of the JAS will have extra benefits not available to members of the local branches of the NKBKHK, including English translations of certain articles from the quarterly newsletters, the Yearbook and other initiatives geared specifically for English-speaking audiences.

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