Can I charge my electronics in Japan?

I live in America and I know we have 120v outlets while Japan has 100v outlets. Will my following devices charge without any adapters in Japan?

I have a Samsung Smart Camera DV150F. It uses a lithium ion battery with: 3.7V(3.7B) 700mAh(2.59Wh)/3.7V(3.7B) 700mAh(2,59Wh)

I have a Nintendo 3DS XL. It also uses a lithium ion (SPR-003) 3.7V battery. Adapter iNPUT: 4.6V-900mA

An Apple Ipad 16GB 2nd gen. 5.1V-2.1A max.

An Apple iPod Model MD480LL.

And lately, I will be getting the new PSVita that will be getting released shortly.

Can anyone let me know if these devices will charge with their regular American charges in Japanese outlets? Do I need to get adapters or converters?

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