If you are using your Japan Rail Pass
to ride the bullet train
to Osaka, you will arrive at Shin Osaka Station.
Shin-Osaka is an important connection point in the shinkansen network
as you can ride the Tokaido Shinkansen
(JR Central) to Kyoto
and the Sanyo Shinkansen (JR West) to Hiroshima and Fukuoka.
it is only one stop from Osaka Station
with the express trains ( Kyoto Line Rapid Service or Special Rapid Service). Follow the sign to transfer to the JR area where tracks are well indicated.