While litigation is pending, a party may notify a third party that is permitted to intervene in the litigation of that litigation.
当事者は、訴訟の係属中、参加することができる第三者にその訴訟の告知をすることができる。
A person that has been notified of litigation may notify another person of that litigation.
訴訟告知を受けた者は、更に訴訟告知をすることができる。
A person must notify another person of litigation by submitting a paper document to the court stating the grounds for notifying that person and the progress of the litigation.
訴訟告知は、その理由及び訴訟の程度を記載した書面を裁判所に提出してしなければならない。
Even if a person receiving notice of litigation does not intervene in the litigation, to apply the provisions of Article 46, that person is deemed to have intervened in the litigation at the time that that person could have intervened.
訴訟告知を受けた者が参加しなかった場合においても、第四十六条の規定の適用については、参加することができた時に参加したものとみなす。
Read this with the articles around it