Aburaage [油揚げ] or usuage [薄上げ] is a soft, deep-fried tofu available in regular supermarkets here in Japan. They are usually in the refrigerated tofu section, together with momen tofu, kinugoshi tofu, fresh TSP (textured soy protein a.k.a. okara, soy pulp) and many others.
I've seen this sold at ￥48, ￥58, and ￥98.
This one is ￥48.