Native name | 光洋電器株式会社[1] |
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Romanized name | Kōyō Denki, K.K. |
Founded | 1955[1] | in Tokyo
Products | Portable radios[1] |
Subsidiaries | Koyo Electronics Industry |
Native name | 光洋電子工業株式会社 |
---|---|
Romanized name | Kōyō Denshi Kōgyō, K.K. |
Founded | March 18, 1959[1] | in Tokyo
Headquarters | Tenjin-cho, Kodaira, Tokyo[1] |
Products | Electronic control devices, imaging devices, automotive devices, factory automation control systems[1] |
Website | koyoele |
Koyo Electronics (Kōyō Denki) and its subsidiary Koyo Electronics Industry (Kōyō Denshi Kōgyō), often collectively referred to as just Koyo, are Japanese electronics companies based in Kodaira, Tokyo[2] that manufactured radios from 1955 until 1973, and now its subsidiary manufactures industrial electronics devices and factory automation control systems.[1]
Their first product was a vacuum tube radio released in 1955,[3][4] and their first transistor radio was the KR-6TS-1 radio released in the spring of 1957[5][6] at the price of 14,000 yen.[7] Through the 1960s, Koyo had manufactured and sold millions of portable transistor radios, particularly, their best-selling model KTR-624 had been shipped over one million units in ten years since its release in 1961.[8][9] Their several models had been sold under other brands, and also supplied to other manufacturers including Philco, Grundig, etc.[10]
However, in the August 1973, they ceased manufacture of audio products including radio receivers and record players.[11]
Koyo's first transistor radio, the KR-6TS1 went on sale in the spring of 1957 at a list price of ¥14,000, (with leather case and battery). ...
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