Yes. If each of the co-owners has personally signed a valid account signature card and has a right of withdrawal on the same basis as the other co-owners, the joint account and each of the individually owned accounts are separately insured up to the $200,000 maximum. (The execution of an account signature card is not required for time certificates of deposit or any other deposit obligation evidenced by a negotiable instrument, but the deposit must in law be jointly owned.) However, the insurance protection on joint accounts is not increased by rearranging the names of the owners, changing the style of the names, or by establishing more than one joint account for the same combination of owners in the same insured institution. No joint account shall in any case be entitled to insurance coverage in excess of $200,000.