Mobile phone industry in Japan other email services have also introduced "emoji" that can be sent and received from mobile handsets as well as computers. Mobile phone industry in Japan The Japanese mobile phone industry is one of the most advanced in the world. As of July 31, 2013 there were 139,180,300 mobile phones in use in Japan. This is 110 percent of Japan's total population according to the Ministry of Internal Affairs and Communications. In Japanese, are often referred to as simply or for short. There are four cellular service operators in Japan. Willcom is the last PHS Personal Handy-phone System service operator. DoCoMo
Osaifu-Keitai to contact each service provider to stop all the functions. There are some phones that can lock the functions via a phone call or an E-mail. Since Osaifu-Keitai can function as identity card (such as member card, company card, or keycard), there is also a risk for those who authenticate it. Osaifu-Keitai , literally "Wallet Mobile", is the "de facto" standard mobile payment system in Japan. Osaifu-Keitai services include electronic money, identity card, loyalty card, fare collection of public transits (including railways, buses, and airplanes), or credit card. The system was developed by NTT docomo but the system is also