# 会社法 / Companies Act — 第六百四条 (Article 604)

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- Law: 会社法 (Companies Act), 平成十七年法律第八十六号
- English title "Companies 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: 第六百四条 (Article 604)（社員の加入） — address `art-604`
- Text in force since: 2026-08-12
- URL (the page that opens at this provision): https://japanlaw.org/ja/companies-act/art-604
- Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/417AC0000000086/art-604
- 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.

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### 第六百四条（社員の加入） — (Admission of Members)
<sup>caption: Ministry of Justice translation — Japanese Law Translation Database System</sup>
<sup>art-604 · https://japanlaw.org/ja/companies-act/art-604 · https://japanlaw.org/l/417AC0000000086/art-604</sup>

    **第一項**  持分会社は、新たに社員を加入させることができる。
    <sup>art-604/par-1 · https://japanlaw.org/ja/companies-act/art-604/par-1 · https://japanlaw.org/l/417AC0000000086/art-604/par-1</sup>
    A membership company may admit a new member.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第二項**  持分会社の社員の加入は、当該社員に係る定款の変更をした時に、その効力を生ずる。
    <sup>art-604/par-2 · https://japanlaw.org/ja/companies-act/art-604/par-2 · https://japanlaw.org/l/417AC0000000086/art-604/par-2</sup>
    Admission of members of a membership company takes effect when a change relating to relevant member is effected in the articles of incorporation.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

    **第三項**  前項の規定にかかわらず、合同会社が新たに社員を加入させる場合において、新たに社員となろうとする者が同項の定款の変更をした時にその出資に係る払込み又は給付の全部又は一部を履行していないときは、その者は、当該払込み又は給付を完了した時に、合同会社の社員となる。
    <sup>art-604/par-3 · https://japanlaw.org/ja/companies-act/art-604/par-3 · https://japanlaw.org/l/417AC0000000086/art-604/par-3</sup>
    Notwithstanding the provisions of the preceding paragraph, if a limited liability company admits a new member, if the person who intends to become the new member has not performed all or a part of the payment or delivery relating to the contribution at the time of the change in the articles of incorporation in that paragraph, the person becomes a member of the limited liability company when relevant payment or delivery has been completed.
    <sup>Ministry of Justice translation — Japanese Law Translation Database System</sup>

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## Cites
- art-604/par-3: 前項 → 会社法 第六百四条第二項 (Article 604, paragraph (2)), art-604/par-2 — https://japanlaw.org/ja/companies-act/art-604/par-2 · https://japanlaw.org/l/417AC0000000086/art-604/par-2

## Cited by

2 provisions cite this one. No official source publishes this direction.

- 会社法 第六百四条第三項（社員の加入） — https://japanlaw.org/ja/companies-act/art-604/par-3 · https://japanlaw.org/l/417AC0000000086/art-604/par-3
- 会社法 第六百八条第二項（相続及び合併の場合の特則） — https://japanlaw.org/ja/companies-act/art-608/par-2 · https://japanlaw.org/l/417AC0000000086/art-608/par-2

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## Sources

- e-Gov 法令検索, Digital Agency (デジタル庁) — 会社法 — the text in force from 2026-08-12 (https://laws.e-gov.go.jp/law/417AC0000000086/20260812_508AC0000000064), retrieved 2026-09-17
- Japanese Law Translation Database System, Ministry of Justice (法務省) — Companies Act — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4481/tb), retrieved 2026-09-17
- This site's parser, version 223 — 会社法 — structure, counts, cross-references and defined terms, computed 2026-09-17
