I was in Center-Minami the other day to visit an acquaintance who uses a wheelchair. The area around the station is pretty accessible for people in wheelchairs, but it was hard to find a place to have some coffee in the late afternooon that had enough space for four people and a wheelchair.
This morning on the news, I heard a segment about a “barrier-free app” for smart phones. I wasn’t paying attention, so I’m not sure if this is what they were talking about, but it looks promising:
Here’s more information from the Nippon Foundation (from July)
And if you plan to do a little research on this topic in English, you’ll find more information if you also use the search terms “universal design” and “inclusive design” and “wheelchair accessible” than if you limit your search to “barrier-free” which is not used as much in English-speaking countries.