I don't think so. There's a short stair at the entry. Restroom has no accomodations.
There is a ramp to get into the building, but you have to walk down a short set of stairs to get into a small eating area
Yes, there is a ramp directly into Sushi Miyazawa and a ramp into the main entrance where the rest rooms are. See the 360 view on the Google pictures of the restaurant.
I don't think so either. The building is very old and I didn't see an alternate entrance without a step except the front door which is blocked off.
Thanks! Your answer is awaiting moderation.