I plan on registering a trademark for an on-line business based in the U.S. for commerce mainly between the U.S. and Brazil. However, when doing my due diligence search, I found that there is one company in Japan that has a similar name for the same on-line services that I plan to sell in the U.S. and Brazil. However, both the similar name I found from Japan, and the one I plan on registering are not yet registered trademarks with the U.S. Trademark Office. I've also searched most state trademark databases and found the name I plan on using is not registered. It is also not registered in Brazil. Should I go ahead and file my application to register my trademark despite my findings on this company in Japan or is there a good chance my application will be denied?