Koyo Electronics Corporation Limited
Native name | 光洋電器株式会社[1] |
|---|---|
Romanized name | Kōyō Denki, K.K. |
| Founded | 1955 in Tokyo[1] |
| 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 in Tokyo[1] |
| 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 since 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]
Gallery
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Koyo KR-6TS-2 (1959) under Eldorado brand%2C_Reverse_Paint_Sliderule_Dial%2C_Made_in_Japan_(8507489229).jpg)
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References
- 1 2 3 4 5 6 7 8 "Company Data" (official site). Koyo Electronics Industries Co., Ltd. 2014.
- ↑ "History of the radio manufacturer: Koyo Denki Co. Ltd.; Kodaira, Tokyo". radiomuseum.org.
- ↑ Fifty Years History, History of products, (English translation: "1955: 4-tube radio, model unknown")
- ↑ Koyo Brochure c.1957.
- ↑ Fifty Years History, History of products,
- ↑ Fifty Years History, KR-6TS-1
- ↑ "Koyo KR-6TS1" (photos: front, rear, inside, rear cover). RadioWallah (tabiwallah.com).
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). ...
- 1 2 Fifty Years History, History of products, (English translation: "1961: 6-transistor radio, KTR-624 (Best-selling model shipped over one million units)")
- 1 2 Fifty Years History, Nostalgia of audio equipment, (English translation: "KTR-624: 6-transistor radio sold over one million units until 1970, called roku-nii-yon (six-two-four), ...")
- 1 2 Fifty Years History, History of products, (English translation: "1962: 8-transistor radio, 8J21P/KTR-837 (sold under both Philco and Koyo to ensure stable production volume)")
- ↑ Fifty Years History, History of products, (English translation: "Audio products such as transistor radios and record players were manufactured since 1955 until 1973, and built the foundation of our company.")
- Bibliography
- 光洋電子工業５０年史 [Koyo Electronics Industries' Fifty Years History] (in Japanese). Koyo Electronics Industries. 2009.
excerpted images: "Nostalgia of audio equipment"., "History of products / audio equipment"., "Our first transistor radio KR-6TS-1"., and "MITI Good Design Award winning radio, KR-6TS-2".
(these images are found on: Ken-ichi Arai (2014). "KOYO ラジオ/".2014-09-13 ... この度、inさんから送って頂いた「光洋電子工業５０年史」...
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- Brochures
- Ultra-compact Koyo Radios - Transistors & Sub miniature tubes (brochure). Chūō, Tokyo: Koyo Electronics Co., Ltd. (Kōyō Denki)., circa 1957.
- Koyo Transistor Radio (brochure). Chūō, Tokyo: Koyo Electronic Industories Co., Ltd. (Kōyō Denshi Kōgyō)., circa 1959.
(these images are found on: "KOYO 光洋の製品カタログ". (カタログ資料は うたくんさん提供)
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External links
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Wikimedia Commons has media related to Koyo radio receivers. |