ComScore (, a company that “measures the digital world,” has released data from the comScore MobiLens service, reporting key trends in the Japan mobile phone industry during the three month average period ending June 2012.

The study surveyed more than 4,000 Japanese mobile subscribers and found Sharp to be the top mobile handset manufacturer overall with 22.6% market share. Google’s Android platform accounted for the majority of smartphone market at 64.1%, followed by Apple with 32.3% of the market.

For the three-month average period ending in June, 102.7 million people age 13 and older used mobile devices in Japan (both feature phone and smartphone devices). Device manufacturer Sharp ranked as the top OEM [original equipment manufacturer] with 22.6% of Japanese mobile subscribers, followed by Panasonic with 13.6% share. Fujitsu captured the #3 ranking in June with 11.8% of mobile subscribers, followed by NEC at 8.9% and Sony at 7.9% to round out the top five.

More than 24 million people in Japan owned smartphones during the three months ending in June, representing 23.5% of the entire mobile population. Smartphone adoption has increased rapidly in 2012, growing 43% versus the end of 2011. Android’s share of the smartphone market reached 64.1% (up 1.9 percentage points versus March), while Apple ranked second with 32.3% of the smartphone market, followed by Microsoft, which accounted for 3.2% share in June 2012.