▁next ▁phase ▁of ▁expansion , ▁the ▁track ▁was ▁extended ▁to ▁M im its u , ▁which ▁opened ▁as ▁the ▁new ▁northern ▁termin us ▁on ▁ 1 1 ▁June ▁ 1 9 2 1 . ▁Ts uno ▁was ▁opened ▁on ▁the ▁same ▁day ▁as ▁an ▁intermediate ▁station ▁on ▁the ▁new ▁track . ▁Exp and ing ▁north ▁from ▁M im its u ▁in ▁phases ▁and ▁joining ▁up ▁with ▁other ▁networks , ▁the ▁track ▁eventually ▁reached ▁ ▁and ▁the ▁entire ▁stretch ▁from ▁K ok ura ▁through ▁this ▁station ▁to ▁Mi y ak ono j ō ▁was ▁red es ign ated ▁as ▁the ▁N ipp ō ▁Main ▁Line ▁on ▁ 1 5 ▁December ▁ 1 9 2 3 . ▁With ▁the ▁priv at ization ▁of ▁Japanese ▁National ▁Rail ways ▁( J NR ), ▁the ▁successor ▁of ▁J GR , ▁on ▁ 1 ▁April ▁ 1 9 8 7 , ▁the ▁station ▁came ▁under ▁the ▁control ▁of ▁J R ▁Ky ush u . ▁ ▁Pass enger ▁statistics ▁In ▁fis cal ▁ 2 0 1 6 , ▁the ▁station ▁was ▁used ▁by ▁an ▁average ▁of ▁ 3 9 5 ▁passengers ▁daily ▁( board ing ▁passengers ▁only ), ▁and ▁it ▁ranked ▁ 2 7 2 nd ▁among ▁the ▁bus iest ▁stations ▁of ▁J R ▁Ky ush u . ▁ ▁See ▁also ▁List ▁of ▁railway ▁stations ▁in ▁Japan ▁ ▁References ▁ ▁External ▁links ▁Ts uno ▁( J R ▁Ky ush u ) ▁ ▁Category : R ail way ▁stations ▁in ▁Mi y az aki ▁Pref ect ure ▁Category : R ail