From 1970s up to 1980s, horizontally long rectangular neon-light advertisements were installed in front of Maebashi station of Japan National Railways in Gunma Prefecture and on the roof of a building in Takasaki City, the latter of which could be seen from a train window of Joetsu Shinkansen until 1990s.
1970年代～1980年代まで群馬県の国鉄前橋駅前や、高崎市のビルの屋上に横長のネオンサインを設置していた（高崎のネオンサインは1990年代まで上越新幹線の車窓から見ることができた）。