| Koyo Electronics Co., Ltd. (Koyo Denki, Co., Ltd.) | |
| Native Name: | 光洋電器株式会社 |
| Native Name Lang: | ja |
| Romanized Name: | Kōyō Denki, K.K. |
| Foundation: | in Tokyo |
| Products: | Portable radios |
| Subsid: | Koyo Electronics Industry |
| Koyo Electronics Industry Co., Ltd. | |
| Native Name: | 光洋電子工業株式会社 |
| Native Name Lang: | ja |
| Romanized Name: | Kōyō Denshi Kōgyō, K.K. |
| Foundation: | in Tokyo |
| Location City: | Tenjin-cho, Kodaira, Tokyo |
| Products: | Electronic control devices, imaging devices, automotive devices, factory automation control systems |
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[1] that manufactured radios from 1955 until 1973, and now its subsidiary manufactures industrial electronics devices and factory automation control systems.[2]
Their first product was a vacuum tube radio released in 1955,[3] and their first transistor radio was the KR-6TS-1 radio released in the spring of 1957[4] at the price of 14,000 yen.[5] 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.[6] [7] Their several models had been sold under other brands, and also supplied to other manufacturers including Philco, Grundig, etc.[8]
However, in the August 1973, they ceased manufacture of audio products including radio receivers and record players.[9]
(these images are found on: Web site: 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) .)
