Sumiyoshi-kai is the second largest yakuza group in Japan with roughly 12, members (20, by some estimates) divided into clans. It has a well-known. Hisayuki Machii nicknamed the "Ginza Tiger was the founder of one of Japan's most notorious yakuza gangs, the Tosei-Kai. Life. According to his widow. In Japan, the Mafia goes by a different name: Yakuza. . Sumiko Fuji, famous for her roles in yakuza films alongside actors Ken Takakura and. Views Read Edit View history. Machii's vast empire included tourism, entertainment, bars and restaurants, prostitution, and oil importing. At various times, people in Japanese cities have launched anti-yakuza campaigns with mixed and varied success. The National Police Agency said it is also planning information exchanges with the U. Using the connections that Inada had made, the yakuza could ship drugs to bank deposit payment method United States, and organized crime syndicates in the US could ship guns to Japan.