Gusto US Beef Specials

Here are two specials featuring US beef. The one on the right is chopped steak and contains 100% US Beef - thus the US trademark. The mixed sirloin steak/chopped steak on the left also contains US Beef but uses the more general US Beef trademark at the lower left. I just wonder why the US beef industry would have competing trademarks. Seems like at the very least the general trademark should appear on all items.

http://gusto-magazine.jp/menu/index.html

Photo is a web capture for explanatory purposes, copyright belongs to the company.