Tokuji Hayakawa (?? ??, Hayakawa Tokuji, November 3, 1893 – June 24, 1980) was a Japanese businessman and the founder of Hayakawa Kinzoku Kogyo (the present-day Sharp Corporation).
He invented and patented the “Tokubijo” 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 from) in 1915.
The success of the “Tokubijo” belt buckle led to Hayakawa starting his own metallurgical processing, which then developed into the present-day Sharp Corporation.