Chronology

1910 - 1929

1912

Founder, Tokuji Hayakawa, invents the Tokubijo snap buckle and acquires utility model design patent
Establishes metalworking shop in Matsui-cho, Honjo-ku, Tokyo (now Shin-ohashi, Koto-ku, Tokyo) on September 15

1914

Moves to Hayashi-cho, Honjo-ku, Tokyo (now Tachikawa, Sumida-ku, Tokyo)
Installs one-horsepower electric motor

1915

Invents Hayakawa Mechanical Pencil and begins export to the US and Europe
Establishes Hayakawa Brothers Shokai

1920

Establishes branch factory in Oshiage, Tokyo (now Yahiro, Sumida-ku, Tokyo)

1923

All factories destroyed during Great Kanto Earthquake
Dissolves Hayakawa Brothers Shokai and relocates to Osaka

1924

Establishes Hayakawa Metal Works in Tanabe-cho, Higashinari-gun, Osaka Prefecture (now the location of the Head Office)

1925

Succeeds in assembling first Japan-made crystal radio set; begins mass production and sales
Establishes sales office in Utsubo, Osaka

1926

Begins export of radio sets and components to China, Southeast Asia, India, and South America
Establishes Tokyo office in Hayashi-cho (Honjo-ku, Tokyo), a former site of the company’s factory
Adopts assembly-line production for radios

1927

Holds Sharp radio trade fairs in Kyushu, Japan and Shanghai, China

1929

Releases AC vacuum-tube radios

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