- Source: Koyo Electronics Corporation Limited
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 that manufactured radios from 1955 until 1973, and now its subsidiary manufactures industrial electronics devices and factory automation control systems.
Their first product was a vacuum tube radio released in 1955, and their first transistor radio was the KR-6TS-1 radio released in the spring of 1957 at the price of 14,000 yen.
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. Their several models had been sold under other brands, and also supplied to other manufacturers including Philco, Grundig, etc.
However, in the August 1973, they ceased manufacture of audio products including radio receivers and record players.
See also
DirectLOGIC
Gallery
References
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」...)
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))
External links
Kata Kunci Pencarian:
- Koyo Electronics Corporation Limited
- Koyo
- List of companies listed on the Singapore Exchange
- South East England
- Economy of Japan
- Iwaki, Fukushima
- Polytechnic schools in Japan
- Economic history of Japan
- History of plug-in hybrids
