FeliCa isn't NFC -- it's a close standard but it's technically different enough and has different requirements that it has licensing attached because it wasn't

FeliCa isn't NFC -- it's a close standard but it's technically different enough and has different requirements that it has licensing attached because it wasn't made freely available. It's technically also called "NFC-F". FeliCa predates NFC's wide adoption in consumer electronic devices because it was in use in Japan in the early 2000's.