The Akita some times called the American Akita
The Akita Inu some times called the Japanese Akita
The American appears to be a little stockier and the Japanese more leggy - I'm no expert have you though of getting the breed standards from the breed clubs?
These were until recently classed as the same breed in the UK and are still in some other countries. Unless you have KC papers I don't think you will ever be 100% sure she is pure Akita - As long as you are enjoying her I wouldn't worry to much
