The assignment of a claim does not require the claim to have already arisen by the time of the manifestation of intention to assign it.
債権の譲渡は、その意思表示の時に債権が現に発生していることを要しない。
If a claim is assigned, and the claim is yet to arise by the time of the manifestation of intention to assign it, the assignee by operation of law acquires the claim when it arises.
債権が譲渡された場合において、その意思表示の時に債権が現に発生していないときは、譲受人は、発生した債権を当然に取得する。
In the case prescribed in the preceding paragraph, if the assignor makes the manifestation of intention to restrict assignment by the time when the assignor gives notice under the provisions of the following Article or the obligor gives consent under the provisions of that Article (referred to as the "time when the requirements for perfection are satisfied" below), a third party such as the assignee is deemed to have known this, and the provisions of Article 466, paragraph (3) (or paragraph (1) of the preceding Article if the claim subject to the manifestation of intention to restrict assignment is a claim for deposits) apply thereto.