Originally Posted by
abmj-jr
No, probably not. I agree with the above that a Suica card will be very helpful in Tokyo. It can also be used in the Kansai area anywhere the ICOCA card is valid. I
think that also includes Hiroshima.
http://www.jreast.co.jp/e/pass/suica.html
If OP is planning to leave Japan from Kansai, I suggest returning the Suica card at a JR East ticket window in Tokyo to get the deposit back. Then buy an ICOCA for use in Osaka etc. Get the deposit back on that card at KIX before flying home.