Sussumi Mukotaka
He was born in the city of Novos Cravinhos, in the state of São Paulo, on January 22, 1938. He lived in the countryside until he was 20 years old, where he completed his studies. He came to São Paulo to work in a pharmacy, administering home injections. He worked for three years at Banco Federal de Crédito, in the accounting department. He has been in the sharpening business since 1963, when he helped his father with his work. He married Silvina, with whom he had two children. His favorite pastime is fishing with his friends. He currently continues to work and teach his son the tricks of sharpening.