Riding a limousine bus into Tokyo is another convenient option. The ticket counter is located in the arrival lounge, although it is high and difficult for a wheelchair bound person to reach alone. The bus departs from just outside the arrival lounge and attendants are readily available to help with luggage. Depending on where you want to go, the trip will take between 70 minutes and 90 minutes, but depending on the traffic it could take an extra hour or more. Be aware that only folding wheelchairs can fit into the cargo holds of the bus, and that wheelchair bound passengers must be accompanied by an assistant.
Taxis are also available to get downtown.
While a taxi may be convenient, the fare will be at least 25,000 including road tolls. Taxis are available outside of the arrival lounge. This is the most convenient way downtown, but be aware of the high cost. After paying your airport tax you will take the escalator down to immigration. This entry is wide enough to go through, and the counter is sufficiently low.