What is the difference between Japanese Akita and Akita Inu?

Excuse me, could you please clarify the distinction between Japanese Akita and Akita Inu? I've heard these terms used interchangeably, but I'm curious if there's a specific difference that sets them apart. Are they referring to the same breed of dog, or are they distinct in some way? It would be greatly appreciated if you could shed some light on this matter.