ドコモ「d払い」を徹底解説 スマホ決済の覇権争いは形を変えたキャリア競争だ！ – ニコニコニュース
ドコモ「d払い」を徹底解説 スマホ決済の覇権争いは形を変えたキャリア競争だ！ ニコニコニュース
3月20日現在、主要家電量販店のリアル店舗の「QRコード」方式のモバイル決済サービス（バーコード決済）の導入状況をまとめると、ノジマ、ヨドバシカメラ以外は、おおむね …
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