Article 5-2Presumptions Regarding a Person Using a Technical Secret they Acquired
第五条の二（技術上の秘密を取得した者の当該技術上の秘密を使用する行為等の推定）
If any of the acts stated in Article 2, paragraph (1), item (iv), (v), or (viii) (limited to acts of acquiring trade secrets) have been conducted with regard to a technical secret (limited to a technical secret concerning manufacturing methods or other information specified by Cabinet Order; the same applies below in this Article), and a person that has conducted such an act produces things using the technical secret or engages in other acts specified by Cabinet Order as acts from which it can be clearly understood that the technical secret has been used (referred to as "production, etc." in this Article below), the person is presumed to have engaged in production, etc. as an act stated in each item (limited to acts of using trade secrets).
If a person possesses a recording medium containing a technical secret (meaning a document, drawing, or recording medium on which technical secrets are described or recorded; the same applies below in this Article), an object that represents the technical secret, or a transmitter identification code (meaning letters, numbers, symbols, or any other codes used to identify the transmitter of an automatic public transmission (meaning a transmission made automatically in response to a public request for direct reception by the public, excluding an automatic public transmissions that are classified as broadcasts or cablecasts); the same applies in paragraph (4)) associated with the recording medium containing the technical secret, after acquiring the technical secret, learns that there had been an intervening act of wrongful acquisition of trade secrets with regard to the relevant technical secret, or is unaware of that fact due to gross negligence, and the person engages in production, etc., the person is presumed to have engaged in production, etc. as an act of unfair competition as stated in Article 2, paragraph (1), item (vi) (limited to the act of using a trade secret).
技術上の秘密を取得した後にその技術上の秘密について営業秘密不正取得行為が介在したことを知って、又は重大な過失により知らないで、その技術上の秘密に係る技術秘密記録媒体等（技術上の秘密が記載され、又は記録された文書、図画又は記録媒体をいう。以下この条において同じ。）、その技術上の秘密が化体された物件又は当該技術秘密記録媒体等に係る送信元識別符号（自動公衆送信（公衆によって直接受信されることを目的として公衆からの求めに応じ自動的に送信を行うことをいい、放送又は有線放送に該当するものを除く。）の送信元を識別するための文字、番号、記号その他の符号をいう。第四項において同じ。）を保有する行為があった場合において、その行為をした者が生産等をしたときは、その者は、第二条第一項第六号に掲げる不正競争（営業秘密を使用する行為に限る。）として生産等をしたものと推定する。
If, after a technical secret has been disclosed by its holder, a person obtains the technical secret by any of the following means in violation of the duty to manage the technical secret, for the purpose of wrongful gain or causing damage to the holder of the technical secret, and the person engages in production, etc., the person is presumed to have engaged in production, etc., as an act of unfair competition (limited to the act of using a trade secret) as stated in Article 2, paragraph (1), item (vii):
misappropriating a recording medium containing technical secrets, etc. or an object that represents technical secrets;
技術秘密記録媒体等又は技術上の秘密が化体された物件を横領すること。
reproducing a description or a record from a recording medium containing technical secrets, etc., or an object that represents technical secrets; or
技術秘密記録媒体等の記載若しくは記録について、又は技術上の秘密が化体された物件について、その複製を作成すること。
not deleting a description or a record that should be deleted from a recording medium containing a technical secret, etc., and disguising this act as if the description or record in the recording medium containing the technical secrets, etc. had been deleted.
技術秘密記録媒体等の記載又は記録であって、消去すべきものを消去せず、かつ、当該記載又は記録を消去したように仮装すること。
If a person possesses a recording medium containing the technical secret, an object that represents the technical secret, or a transmitter identification code associated with a recording medium containing the technical secret, after acquiring the technical secret, learns that an act of improper disclosure of the trade secret has occurred with regard to the technical secret, or that there had been an intervening act of improper disclosure, or is unaware of this fact due to gross negligence, and the person engages in production, etc., the person is presumed to have engaged in production, etc., as unfair competition as stated in Article 2, paragraph (1), item (ix) (limited to the act of using a trade secret).