https://www.tokyometro.jp/lang_en/ticket/types/tap-to-ride/index.html
Tap to Ride Service (Ride with a credit card) | Tickets, etc. | Tokyo Metro
This page introduces Tokyo Metro 'Tickets, etc.'.
tap to ride
https://www.pymnts.com/tag/tap-to-ride/
Tap-to-Ride Archives | PYMNTS.com
tap to ridearchivespymnts
https://www.tokyometro.jp/en/ticket/tap-to-ride/index.html
Tokyo Metro | Tap to Ride Service (Ride with a credit card)
Tokyo Metro's ticket information. You can search for fares and transfer routes as well as detailed information on tickets and passes.
tap to ridetokyo metroservicecreditcard