Masahiro Ajisawa is the senior director of Japan sales and East Asia business development, where he leads advertising business in Japan and Twitter's partnerships in Japan and Korea. Prior to joining Twitter, Masahiro was the country sales director of Advertising & Online division, where he oversaw own and operated display business and Microsoft Media Network. Before joining Microsoft, Masahiro was the business director at Ogilvy & Mather, where he managed 360 brand teams for Japanese and international blue chip companies.