Takeshi Kumon, president of Kumon Education Institute, left an estate valued at about 1.91 billion yen when he died last year, Tokyo tax authorities disclosed Wednesday.The property, mainly made up of the late Kumon's house and land in Tokyo's Meguro Ward and shares of the institute, has been inherited by his widow, Rinko, and two other people, according to the Meguro Tax Office in Tokyo. Kumon died last January at the age of 50 while he was president of the institute.Kumon, along with his late father, Toru, developed and spread a unique learning method for mathematics, the Japanese and English languages and other subjects. According to the institute, 1.58 million people in Japan and 970,000 others overseas are studying with Kumon-method teaching materials.
