BCN Ranking published their top 10 lists of best selling compact and interchangeable lens cameras in Japan for the month of July, 2015. Canon dominates both charts with a total of 11 models, followed by Nikon with 3 and Olympus, Casio, Sony each with 2 cameras in the charts. The DSLR vs. mirrorless ratio was 7:3. BCN Ranking collects sales data from approximately 2/3 of all Japanese retail stores.
Here are the charts: