A financial instruments exchange must use the Japanese characters 取引所 (pronounced "torihikijo", meaning "exchange") in its name or trade name.
金融商品取引所は、その名称又は商号のうちに取引所という文字を用いなければならない。
A person that is not a financial instruments exchange must not use a term in its name or trade name which could give rise to the misconception that it is a financial instruments exchange.
金融商品取引所でない者は、その名称又は商号のうちに金融商品取引所であると誤認されるおそれのある文字を用いてはならない。
Read this with the articles around it
financial instruments exchange
「金融商品取引所」
A membership corporation (金融商品会員制法人) or stock company (株式会社) licensed by the Prime Minister under Article 80, paragraph (1) to open a financial instruments market (金融商品市場).
Defined inArticle 2, paragraph (16)· applies throughout the law