KDDI Corp. said Monday it will launch ultrafast 5G wireless services in Japan later this week, offering a monthly plan with unlimited data for 8,650 yen ($77) to entice customers who want to enjoy video and online gaming on the go.From Thursday, if customers combine a number of promotions, the price of unlimited data use can drop to as low as 3,460 yen a month for users of the "au" mobile phone service the company operates. Its rivals NTT Docomo Inc. and SoftBank Corp. said they will start 5G services from Wednesday and Friday, respectively.KDDI's 5G services will be available in 15 of Japa…READ FULL ARTICLE