A holder of a filed bankruptcy claim may make an objection in writing to the court within an ordinary period for investigation with regard to the particulars stated in the items of paragraph (1) of the preceding Article concerning a bankruptcy claim prescribed in paragraph (1) or (2) of that Article.
The bankrupt may make an objection in writing to the court within an ordinary period for investigation with regard to the amount of the bankruptcy claim referred to in the preceding paragraph.
When the court has made an order to change the ordinary period for investigation, it must serve the written judgment upon the bankruptcy trustee, the bankrupt, and holders of filed bankruptcy claims (prior to the expiration of the period for filing proofs of claims, the known bankruptcy creditors).
The delivery under the provisions of the preceding paragraph may be made by sending the necessary documents by ordinary mail or by correspondence delivery services prescribed in Article 2, paragraph (2) of the Act on Correspondence Delivery by Private Business Operators that are provided by a general correspondence delivery operator prescribed in paragraph (6) of that Article or a specified correspondence delivery service provider prescribed in paragraph (9) of that Article.
前項の規定による送達は、書類を通常の取扱いによる郵便に付し、又は民間事業者による信書の送達に関する法律第二条第六項に規定する一般信書便事業者若しくは同条第九項に規定する特定信書便事業者の提供する同条第二項に規定する信書便の役務を利用して送付する方法によりすることができる。
If a service has been made under the provisions of the preceding paragraph, the service is deemed to have been made at the time when the postal item, etc. sent should have normally reached the addressee.
Read this with the articles around it