[wilgo]

HI, Anita:

Generally speaking, there is no problem in taking public transportations with your powered wheelchair here in Tokyo. You can check the station map of Japan Rail and Tokyo metro at;

https://www.jreast.co.jp/multi/en/stations/
https://www.tokyometro.jp/en/subwaymap/index.html

We are providing wheelchair travelers with wheelchair accessible taxi service.

https://odekakeoffice.jp/en/

All the best,