iPod charger in Tokyo?

We're in Tokyo and my son can't find his iPod charger. Do we have to go to an Apple store to buy this, or are they available in other stores? We're staying in the Ueno area and will be shopping in Shinjuku tomorrow. Thank you.

You will be able to find chargers in many of the large electronics stores. Yodobashi and Bic Camera both will stock them. There is a Bic Camera at the West exit of Shinjuku station, and Yodobashi also have a huge store just a little further west of the station.

Both chains also have stores on the east side, as well as scattered throughout Tokyo, you should have no trouble finding one.

Japan-guide has a map with these stores marked on it too.
http://www.japan-guide.com/e/e3011.html

There is also a Yodobashi in Ueno, 1 minute walk from JR Ueno station.
http://www.yodobashi.com/ec/store/0025/index.html

Map for Ueno:-
http://www.yodobashi.com/ec/store/map/0025/index.html

Enjoy the rest of your stay!