# 民法 / Civil Code — 第三百九十八条の九 (Article 398-9) - Law: 民法 (Civil Code), 明治二十九年法律第八十九号 - English title "Civil Code": 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: 第三百九十八条の九 (Article 398-9)（根抵当権者又は債務者の合併） — address `art-398-9` - Text in force since: 2026-06-24 - URL (the page that opens at this provision): https://japanlaw.org/en/civil-code/art-398-9 - Permanent URL (e-Gov law ID, never renamed): https://japanlaw.org/l/129AC0000000089/art-398-9 - 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. --- ### 第三百九十八条の九（根抵当権者又は債務者の合併） — (Mergers of Revolving Mortgagees or Obligors) caption: Ministry of Justice translation — Japanese Law Translation Database System art-398-9 · https://japanlaw.org/en/civil-code/art-398-9 · https://japanlaw.org/l/129AC0000000089/art-398-9 **第一項** 元本の確定前に根抵当権者について合併があったときは、根抵当権は、合併の時に存する債権のほか、合併後存続する法人又は合併によって設立された法人が合併後に取得する債権を担保する。 art-398-9/par-1 · https://japanlaw.org/en/civil-code/art-398-9/par-1 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-1 If there is a merger with respect to a revolving mortgagee before the principal is fixed, the revolving mortgage secures the claims that exist at the time of the merger and otherwise secures claims that a corporation that survives the merger or a corporation that is incorporated by the merger acquires after the merger. Ministry of Justice translation — Japanese Law Translation Database System **第二項** 元本の確定前にその債務者について合併があったときは、根抵当権は、合併の時に存する債務のほか、合併後存続する法人又は合併によって設立された法人が合併後に負担する債務を担保する。 art-398-9/par-2 · https://japanlaw.org/en/civil-code/art-398-9/par-2 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-2 If there is a merger with respect to an obligor before the principal is fixed, the revolving mortgage secures the obligations that exist at the time of the merger and otherwise secures the obligations that a corporation that survives the merger or a corporation that is incorporated by the merger assumes after the merger. Ministry of Justice translation — Japanese Law Translation Database System **第三項** 前二項の場合には、根抵当権設定者は、担保すべき元本の確定を請求することができる。ただし、前項の場合において、その債務者が根抵当権設定者であるときは、この限りでない。 art-398-9/par-3 · https://japanlaw.org/en/civil-code/art-398-9/par-3 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-3 In the cases provided for in the preceding two paragraphs, the mortgagor of the revolving mortgage may demand that the principal secured be fixed; provided, however, that this does not apply, in the cases referred to in the preceding paragraph, if the relevant obligor is the mortgagor of the revolving mortgage. Ministry of Justice translation — Japanese Law Translation Database System **第四項** 前項の規定による請求があったときは、担保すべき元本は、合併の時に確定したものとみなす。 art-398-9/par-4 · https://japanlaw.org/en/civil-code/art-398-9/par-4 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-4 If a demand under the provisions of the preceding paragraph is made, the principal secured is deemed to have been fixed at the time of the merger. Ministry of Justice translation — Japanese Law Translation Database System **第五項** 第三項の規定による請求は、根抵当権設定者が合併のあったことを知った日から二週間を経過したときは、することができない。合併の日から一箇月を経過したときも、同様とする。 art-398-9/par-5 · https://japanlaw.org/en/civil-code/art-398-9/par-5 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-5 The demand under the provisions of paragraph (3) may not be made if two weeks have passed since the day when the mortgagor of the revolving mortgage acquired knowledge of the merger. The same applies if one month has passed from the day of the merger. Ministry of Justice translation — Japanese Law Translation Database System --- ## Cites - art-398-9/par-3: 前二項 → 民法 第三百九十八条の九第一項 (Article 398-9, paragraph (1)), art-398-9/par-1 — https://japanlaw.org/en/civil-code/art-398-9/par-1 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-1 - art-398-9/par-3: 前二項 → 民法 第三百九十八条の九第二項 (Article 398-9, paragraph (2)), art-398-9/par-2 — https://japanlaw.org/en/civil-code/art-398-9/par-2 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-2 - art-398-9/par-4: 前項 → 民法 第三百九十八条の九第三項 (Article 398-9, paragraph (3)), art-398-9/par-3 — https://japanlaw.org/en/civil-code/art-398-9/par-3 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-3 - art-398-9/par-5: 第三項 → 民法 第三百九十八条の九第三項 (Article 398-9, paragraph (3)), art-398-9/par-3 — https://japanlaw.org/en/civil-code/art-398-9/par-3 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-3 ## Cited by 5 provisions cite this one. No official source publishes this direction. - 国民年金法 第百三十七条の三の十四第一項 — https://japanlaw.org/en/national-pension-act/art-137-3-14/par-1 · https://japanlaw.org/l/334AC0000000141/art-137-3-14/par-1 - 民法 第三百九十八条の九第三項（根抵当権者又は債務者の合併） — https://japanlaw.org/en/civil-code/art-398-9/par-3 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-3 - 民法 第三百九十八条の九第四項（根抵当権者又は債務者の合併） — https://japanlaw.org/en/civil-code/art-398-9/par-4 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-4 - 民法 第三百九十八条の九第五項（根抵当権者又は債務者の合併） — https://japanlaw.org/en/civil-code/art-398-9/par-5 · https://japanlaw.org/l/129AC0000000089/art-398-9/par-5 - 民法 第三百九十八条の十第三項（根抵当権者又は債務者の会社分割） — https://japanlaw.org/en/civil-code/art-398-10/par-3 · https://japanlaw.org/l/129AC0000000089/art-398-10/par-3 --- ## Sources - e-Gov 法令検索, Digital Agency (デジタル庁) — 民法 — the text in force from 2026-06-24 (https://laws.e-gov.go.jp/law/129AC0000000089/20260624_508AC0000000045), retrieved 2026-10-11 - Japanese Law Translation Database System, Ministry of Justice (法務省) — Civil Code — Ministry of Justice translation (part 1 of 2) (https://www.japaneselawtranslation.go.jp/en/laws/view/4848/tb), retrieved 2026-10-11 - This site's parser, version 190 — 民法 — structure, counts, cross-references and defined terms, computed 2026-10-11