Yoru no ume (night plum): the most famous yokan under this name is 'Ogura-yokan Yoru no ume (registered trademark)', a representative product of Toraya Kurokawa (commonly known as Toraya (Akasaka, Minato Ward, Tokyo), the main store located in Akasaka).
夜の梅：虎屋黒川（通称とらや(東京都港区赤坂)、本店・赤坂）の代表的商品「小倉羊羹夜の梅（登録商標）」がいちばん有名である。