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The is an industry trade group composed of Japanese corporations involved in the music industry. It was founded in 1942 as the Japan Phonogram Record Cultural Association, and adopted its current name in 1969. The RIAJ's activities include promotion of music sales, enforcement of copyright law, and research related to the Japanese music industry. It publishes the annual ''RIAJ Year Book'', a statistical summary of each year's music sales, as well as distributing a variety of other data. Headquartered in Minato, Tokyo, the RIAJ has twenty member companies and a smaller number of associate and supporting members; some member companies are the Japanese branches of multinational corporations headquartered elsewhere. The association is responsible for certifying gold and platinum albums and singles in Japan. ==RIAJ Certification== In 1989, the Recording Industry Association of Japan introduced the music recording certification systems. It is awarded based on shipment figures of compact disc or cassette tape which was reported by record labels. In principle, the criteria are limitedly applied to the materials released after January 21, 1989. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Recording Industry Association of Japan」の詳細全文を読む スポンサード リンク
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