# 不正競争防止法 / Unfair Competition Prevention Act — 第十条 (Article 10) - Law: 不正競争防止法 (Unfair Competition Prevention Act), 平成五年法律第四十七号 - English title "Unfair Competition Prevention Act": Ministry of Justice translation - Kind: Act — the distinction between 法律 (Act), 政令 (Cabinet Order), 省令 (Ministerial Order) and 条例 (local ordinance) decides who may issue it and what it may say. - Provision: 第十条 (Article 10)（秘密保持命令） — address `art-10` - Text in force since: 2026-05-21 - URL (the page that opens at this provision): https://japanlaw.org/en/unfair-competition-prevention-act/art-10 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/405AC0000000047/art-10 - Every provision below carries its address and both URLs on the line under it. - Japanese text: e-Gov 法令検索, Digital Agency (デジタル庁). English: as marked on each line below. Only the Japanese as published by the government has legal effect; the text below is a copy of it. Every English rendering below is a translation and says which kind: the Ministry of Justice's translation, or this site's machine translation, whose model and date the Sources list names. They are never merged and never substituted for one another. --- ### 第十条（秘密保持命令） — (Orders to Protect Confidentiality) caption: Ministry of Justice translation — Japanese Law Translation Database System art-10 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10 · https://japanlaw.org/l/405AC0000000047/art-10 **第一項** 裁判所は、不正競争による営業上の利益の侵害に係る訴訟において、その当事者が保有する営業秘密について、次に掲げる事由のいずれにも該当することにつき疎明があった場合には、当事者の申立てにより、決定で、当事者等、訴訟代理人又は補佐人に対し、当該営業秘密を当該訴訟の追行の目的以外の目的で使用し、又は当該営業秘密に係るこの項の規定による命令を受けた者以外の者に開示してはならない旨を命ずることができる。ただし、その申立ての時までに当事者等、訴訟代理人又は補佐人が第一号に規定する準備書面の閲読又は同号に規定する証拠の取調べ若しくは開示以外の方法により当該営業秘密を取得し、又は保有していた場合は、この限りでない。 art-10/par-1 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-1 In litigation involving infringement that may harm business interests through unfair competition, if a prima facie showing is made that trade secrets held by a party to the litigation fall under both of the following grounds, the court, at the request of the party, may, by ruling, order a party, etc., counsel, or assistant in court not to use the trade secrets for any purpose other than conducting the litigation, or not to disclose them to any person other than one subject to the order under this paragraph concerning the trade secrets; provided, however, that this does not apply if the party, etc., counsel, or assistant in court had already acquired or held the trade secrets by means other than reading the brief prescribed in item (i) or the examination or disclosure of evidence prescribed in the same item by the time the request was made: Ministry of Justice translation — Japanese Law Translation Database System **一** 既に提出され若しくは提出されるべき準備書面に当事者の保有する営業秘密が記載され、又は既に取り調べられ若しくは取り調べられるべき証拠（第七条第三項の規定により開示された書類若しくは電磁的記録又は第十三条第四項の規定により開示された書面若しくは電磁的記録を含む。）の内容に当事者の保有する営業秘密が含まれること。 art-10/par-1/item-1 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1/item-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-1/item-1 the trade secrets held by the party are written in an already-produced or a to-be-produced brief, or are included in the contents of already-examined or to-be-examined evidence (including documents or electronic or magnetic records disclosed pursuant to Article 7, paragraph (3), or a document or electronic or magnetic record disclosed pursuant to Article 13, paragraph (4)); and machine translation, not official **二** 前号の営業秘密が当該訴訟の追行の目的以外の目的で使用され、又は当該営業秘密が開示されることにより、当該営業秘密に基づく当事者の事業活動に支障を生ずるおそれがあり、これを防止するため当該営業秘密の使用又は開示を制限する必要があること。 art-10/par-1/item-2 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1/item-2 · https://japanlaw.org/l/405AC0000000047/art-10/par-1/item-2 the party's business activities based on the trade secrets under the preceding item are likely to be hindered if the trade secrets are used for purposes other than conducting the litigation or are disclosed; it is necessary to restrict the use or disclosure of the trade secrets to prevent such hindrance. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 前項の規定による命令（以下「秘密保持命令」という。）の申立ては、次に掲げる事項を記載した書面でしなければならない。 art-10/par-2 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-2 · https://japanlaw.org/l/405AC0000000047/art-10/par-2 A petition for the order under the preceding paragraph (referred to as "protective order" below) must be made in writing and include the following information: Ministry of Justice translation — Japanese Law Translation Database System **一** 秘密保持命令を受けるべき者 art-10/par-2/item-1 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-2/item-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-2/item-1 the person to whom the protective order is to be issued; Ministry of Justice translation — Japanese Law Translation Database System **二** 秘密保持命令の対象となるべき営業秘密を特定するに足りる事実 art-10/par-2/item-2 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-2/item-2 · https://japanlaw.org/l/405AC0000000047/art-10/par-2/item-2 facts that are sufficient for identifying the trade secrets that are to be made the subject of the protective order; and Ministry of Justice translation — Japanese Law Translation Database System **三** 前項各号に掲げる事由に該当する事実 art-10/par-2/item-3 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-2/item-3 · https://japanlaw.org/l/405AC0000000047/art-10/par-2/item-3 facts that fall within the grounds stated in the respective items of the preceding paragraph. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 秘密保持命令が発せられた場合には、その電子決定書（民事訴訟法第百二十二条において準用する同法第二百五十二条第一項の規定により作成された電磁的記録（同法第百二十二条において準用する同法第二百五十三条第二項の規定により裁判所の使用に係る電子計算機（入出力装置を含む。）に備えられたファイルに記録されたものに限る。）をいう。次項及び次条第二項において同じ。）を秘密保持命令を受けた者に送達しなければならない。 art-10/par-3 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-3 · https://japanlaw.org/l/405AC0000000047/art-10/par-3 If a protective order has been issued, the electronic written ruling (meaning an electronic or magnetic record created pursuant to the provisions of Article 252, paragraph (1) of the Code of Civil Procedure as applied mutatis mutandis pursuant to Article 122 of that Act (limited to one recorded, pursuant to the provisions of Article 253, paragraph (2) of that Act as applied mutatis mutandis pursuant to Article 122 of that Act, in a file kept on a computer (including input/output devices) used by the court); the same applies in the following paragraph and paragraph (2) of the following Article) must be served on the person to whom the protective order has been issued. machine translation, not official **第四項** 秘密保持命令は、秘密保持命令を受けた者に対する電子決定書の送達がされた時から、効力を生ずる。 art-10/par-4 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-4 · https://japanlaw.org/l/405AC0000000047/art-10/par-4 A protective order takes effect when an electronic written ruling is served on the person to whom the protective order has been issued. machine translation, not official **第五項** 秘密保持命令の申立てを却下した裁判に対しては、即時抗告をすることができる。 art-10/par-5 · https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-5 · https://japanlaw.org/l/405AC0000000047/art-10/par-5 If the court dismisses a petition for a protective order, the party may file an immediate appeal against the judicial decision. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-10/par-1: この項 → 不正競争防止法 第十条第一項 (Article 10, paragraph (1)), art-10/par-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-1 - art-10/par-1: 第一号 → 不正競争防止法 第十条第一項第一号 (Article 10, paragraph (1), item (i)), art-10/par-1/item-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1/item-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-1/item-1 - art-10/par-1/item-1: 第七条第三項 → 不正競争防止法 第七条第三項 (Article 7, paragraph (3)), art-7/par-3 — https://japanlaw.org/en/unfair-competition-prevention-act/art-7/par-3 · https://japanlaw.org/l/405AC0000000047/art-7/par-3 - art-10/par-1/item-1: 第十三条第四項 → 不正競争防止法 第十三条第四項 (Article 13, paragraph (4)), art-13/par-4 — https://japanlaw.org/en/unfair-competition-prevention-act/art-13/par-4 · https://japanlaw.org/l/405AC0000000047/art-13/par-4 - art-10/par-1/item-2: 前号 → 不正競争防止法 第十条第一項第一号 (Article 10, paragraph (1), item (i)), art-10/par-1/item-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1/item-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-1/item-1 - art-10/par-2: 前項 → 不正競争防止法 第十条第一項 (Article 10, paragraph (1)), art-10/par-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-1 - art-10/par-2/item-3: 前項 → 不正競争防止法 第十条第一項 (Article 10, paragraph (1)), art-10/par-1 — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-1 - art-10/par-3: 民事訴訟法第百二十二条 → e-Gov law 408AC0000000109, 第百二十二条 (Article 122), art-122 — not held in this collection - art-10/par-3: 同法第二百五十二条第一項 → e-Gov law 408AC0000000109, 第二百五十二条第一項 (Article 252, paragraph (1)), art-252/par-1 — not held in this collection - art-10/par-3: 同法第二百五十三条第二項 → e-Gov law 408AC0000000109, 第二百五十三条第二項 (Article 253, paragraph (2)), art-253/par-2 — not held in this collection - art-10/par-3: 次項 → 不正競争防止法 第十条第四項 (Article 10, paragraph (4)), art-10/par-4 — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-4 · https://japanlaw.org/l/405AC0000000047/art-10/par-4 - art-10/par-3: 次条第二項 → 不正競争防止法 第十一条第二項 (Article 11, paragraph (2)), art-11/par-2 — https://japanlaw.org/en/unfair-competition-prevention-act/art-11/par-2 · https://japanlaw.org/l/405AC0000000047/art-11/par-2 ## Cited by 9 provisions cite this one. No official source publishes this direction. - 不正競争防止法 第十条第一項（秘密保持命令） — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1 · https://japanlaw.org/l/405AC0000000047/art-10/par-1 - 不正競争防止法 第十条第一項第二号（秘密保持命令） — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-1/item-2 · https://japanlaw.org/l/405AC0000000047/art-10/par-1/item-2 - 不正競争防止法 第十条第二項（秘密保持命令） — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-2 · https://japanlaw.org/l/405AC0000000047/art-10/par-2 - 不正競争防止法 第十条第二項第三号（秘密保持命令） — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-2/item-3 · https://japanlaw.org/l/405AC0000000047/art-10/par-2/item-3 - 不正競争防止法 第十条第三項（秘密保持命令） — https://japanlaw.org/en/unfair-competition-prevention-act/art-10/par-3 · https://japanlaw.org/l/405AC0000000047/art-10/par-3 - 不正競争防止法 第十一条第一項（秘密保持命令の取消し） — https://japanlaw.org/en/unfair-competition-prevention-act/art-11/par-1 · https://japanlaw.org/l/405AC0000000047/art-11/par-1 - 不正競争防止法 第十九条第一項（適用除外等） — https://japanlaw.org/en/unfair-competition-prevention-act/art-19/par-1 · https://japanlaw.org/l/405AC0000000047/art-19/par-1 - 不正競争防止法 附則第三条第一項第四号（特許法等の一部改正に伴う経過措置） — https://japanlaw.org/en/unfair-competition-prevention-act/suppl-4161-120/art-3/par-1/item-4 · https://japanlaw.org/l/405AC0000000047/suppl-4161-120/art-3/par-1/item-4 - 不正競争防止法 附則第七十七条第一項（不正競争防止法の一部改正に伴う経過措置） — https://japanlaw.org/en/unfair-competition-prevention-act/suppl-5041-48/art-77/par-1 · https://japanlaw.org/l/405AC0000000047/suppl-5041-48/art-77/par-1 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 不正競争防止法 — the text in force from 2026-05-21 (https://laws.e-gov.go.jp/law/405AC0000000047/20260521_507AC0000000039), retrieved 2026-10-11 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Unfair Competition Prevention Act — Ministry of Justice translation (https://www.japaneselawtranslation.go.jp/en/laws/view/4920/tb), retrieved 2026-10-11 - claude-sonnet-5-5 — Machine translation, batch unfair-competition-prevention-act-20261011T031431-001, translated 2026-10-11 - This site's parser, version 189 — 不正競争防止法 — structure, counts, cross-references and defined terms, computed 2026-10-11