Tokuji Hayakawa

Japanese businessman (1893–1980)

Tokuji Hayakawa (早川 徳次, Hayakawa Tokuji; November 3, 1893 – June 24, 1980) was a Japanese businessman and the founder of Hayakawa Kinzoku Kōgyō (the present-day Sharp Corporation). He invented and patented the “Tokubijō” belt buckle in 1912 (a belt which can fasten without perforating) and invented the "Ever Ready Sharp" mechanical pencil (from which his company would later get its name) in 1915.²

From Wikipedia’s article on Tokuji Hayakawa (this version), CC BY-SA 4.0.

Born Nov 3, 1893, died Jun 24, 1980.¹