Japan Railway, more commonly called JR, is a collective term for seven Japanese private railroad companies.
In addition, there is JR Soken (JR総研), a research institution.
Kokutetsu (Lit. Japan National Railway; 国鉄 or 日本国有鉄道) was privatized on April 1, 1987 and spread into 11 companies.
See also: List of railway companies in Japan, Railroad, Private railroad, Shinkansen, Transportation in Japan
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