Banzai!! Banzai!! Banzai!!! to Sensei Keiko Fukuda of San Francisco. She recently became the first woman to earn a 10th degree black belt in judo, at the age of 98. Only three others have this martial arts highest ranking - all men living in Japan. Fukuda started learning judo more than 75 years ago in Japan and still teaches three times a week. Earning this black belt was her lifelong dream. You can see an inspiring YouTube segment on Sensei Fukuda.