Japanese Game Releases (Not Rom Dumps)

Can anyone direct me to a good site (preferably english) that is keeping records of Japanese Game Releases, and I'm not talking about roms I'm meaning the actual official commerical releases. I'm trying to gather as much information as I can with this whole NDS thing and my biggest problem is my lack of JAP records. So if anyone knows of a site, please tell me as soon as you can.
I'm looking for information such as RELEASE DATE, GENRE, PUBLISHER, DEVELOPER.

Thanks,
I've been spending my time tyrying to translate Nintendo.co.jp so I could get the information, I have an auto translator in Explorer, but still it doesn't make things any easier, this will be good cos it's in English!! Thanks again.