| 1926 |
- Names radio sets "Sharp Dyne"
- Establishes Tokyo office
- Begins export of radio parts to China, Southeast Asia, India and South America
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- Japan Broadcasting Corporation (NHK) established (August 6)
- First public demonstration of television in the US
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| 1927 |
- Establishes Fukuoka office
- Holds radio trade fair in Shanghai, China
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| 1929 |
- Markets AC vacuum-tube radio sets
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- World economy enters the Great Depression (October 24)
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| 1930 |
- Markets Sharp Dyne Type 31 (with horn speaker)
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- Ban on the export of gold lifted in Japan (January 11)
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| 1931 |
- Establishes radio wave laboratory and begins research on television technology
- Establishes sales outlet in Hong Kong
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- Manchurian Incident (September 18)
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| 1932 |
- Markets Sharp Dyne Fuji Type 33 (with magnetic cone speaker)
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- Markets Sharp Dyne Fuji Type 33 (with magnetic cone speaker)
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| 1934 |
- Constructs Hirano Plant in Osaka
- Markets Phonoradio Type 575 phonograph with built-in radio
- Establishes Shanghai office
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| 1935 |
- Hayakawa Metal Works Institute Co. incorporated with capital of 300,000 yen (May 1)
- Establishes Nagoya office
- Stations employees in Thailand
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| 1936 |
- Changes company name to Hayakawa Metal Works Co.
- Installs Japan's first intermittent belt conveyor system
- Markets Pentode Radio Type 200, the first such unit to feature a cabinet made of phenol plastic (Bakelite)
- Establishes 16 offices in locations including Tienchin, Taipei and Seoul
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| 1937 |
- Establishes Hayakawa Commercial School for Youth
- Markets Sharp Dyne Type 7
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- Sino-Japanese War begins (July 7)
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| 1938 |
- Markets PA-500 record player
- Establishes customer service centers in Osaka, Kyoto and Kobe
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| 1939 |
- Establishes offices in Manchuria and Changchun, China
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- NHK begins full-scale television experiments (Japan)
- Nomonhan Incident (May 11)
- World War II begins (September 1)
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