Enforcement Rules of the Patent Act Article 58

When requesting division of a patent application for design, a request form for each divisional patent application shall be submitted and accompanied by description and drawing(s).Where the priority prescribed under Paragraph 1, Article 28 applicable mutatis mutandis under Paragraph 1, Article 142 of the Act is claimed, a statement thereof shall be made at the time of filing the request form for each divisional patent application.The divisional patent application shall not differ from the original patent application in its type.
中文原文 專利法施行細則第58條
設計專利申請案申請分割者,應就每一分割案,備具申請書,並檢附說明書及圖式。
有主張本法第一百四十二條第一項準用第二十八條第一項規定之優先權者,應於每一分割申請案申請時敘明之。
分割申請,不得變更原申請案之專利種類。

English translation for reference only; the Chinese text prevails. Not legal advice.