法令翻訳 http://www.japaneselawtranslat...amp;page=5

(無限責任社員であると誤認させる行為等をした有限責任社員の責任)
第五百八十八条   合資会社の有限責任社員が自己を無限責任社員であると誤認させる行為をしたときは、当該有限責任社員は、その誤認に基づいて合資会社と取引をした者に対し、無限責任社員と同一の責任を負う。

Liability of Members with Limited Liability for Acts Mistaken as Acts of Members with Unlimited Liability
Article 588   If a member with limited liability of a Limited Partnership Company engages in an act that causes such member with limited liability to be mistaken as a member with unlimited liability, such member with limited liability assumes the same liability as that assumed by a member with unlimited liability in relation to persons who transact with the Limited Partnership Company based on such mistaken belief.

合資会社又は合同会社の有限責任社員がその責任の限度を誤認させる行為（前項の行為を除く。）をしたときは、当該有限責任社員は、その誤認に基づいて合資会社又は合同会社と取引をした者に対し、その誤認させた責任の範囲内で当該合資会社又は合同会社の債務を弁済する責任を負う。

If a member with limited liability of a Limited Partnership Company or Limited Liability Company engages in an act that causes mistake as to the extent of the liability of such member with limited liability(excluding that in the preceding paragraph), such member with limited liability assumes the liability to perform the obligations of such Limited Partnership Company or Limited Liability Company in relation to persons who transact with the Limited Partnership Company or Limited Liability Company on the bases of such mistaken belief, to the extent of the liability so mistaken.