The story
The company was founded on 29 March 1989, and on 19 April 1990, received government approval to operate the Minatomirai Line. On 1 August 1997, the company acquired the Kodomonokuni Line. The Minatomirai Line opened on 1 February 2004.
From Wikipedia’s article on Yokohama Minatomirai Railway, shared under CC BY-SA 4.0.4
