Sadly, no. I usually just rip Japanese stuff as "Track 1.mp3, Track 2.mp3..." then tag by hand. In fact, I don't think there's an MP3 in my entire collection (70,000+) that I haven't modified the tags on manually. I'm REALLY anal-retentive about having my music tagged properly.

For multi-language tagging, nothing I've tried works better than MP3BookHelper. I handle Unicode beautifully, and its regular expression support is phenominal.