Tokuji Hayakawa

Tokuji Hayakawa
Two men working at a table with various electronic devices. One is standing on the left side of the table. The other, seated on the right side of the table, is wearing headphones and testing a crystal radio.
Hayakawa (right) testing a crystal radio (1925)
BornNovember 3, 1893
Tokyo, Japan
DiedJune 24, 1980(1980-06-24) (aged 86)
NationalityJapanese
Occupationbusinessman
Known forfounder of Sharp Corporation, inventor of the Ever-Ready Sharp Pencil

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.

The success of the “Tokubijō” belt buckle led to Hayakawa starting his own metallurgical processing, which then developed into the present-day Sharp Corporation.