Yum! Yum! ORANGE
Ska/Pop
http://yumyumorange.jp/news.html
I don't think there's any samples on the site, but there's on http://mullemeck.serveftp.org/jps_beta/

The-Stiff
Hardcore/Screamo - I think.
http://www.the-stiff.com/
They've got samples on the site.