In December I reported iPhone controls 46% of Japanese smartphone market | Asymco. Five months later Apple’s share has reached 72%.
According the MM Research, 1.7 million iPhone were sold in the fiscal year ended March 31. That’s not a huge number relative to the 110 million subscribers in the country. But Apple’s exclusive carrier Softbank has only 22 million subscribers so Apple may have penetrated over 10% of that user base.