The initial move after the Tokyo inflation data was for yen weakness:

In that post I made note that the weaker CPI reading fed through to a weaker yen as it takes off some pressure for nearer-term BoJ rate hikes. I've just printed out that post, torn it up, and flushed it down the toilet.

There's not a lot there that appear to be the smoking gun for the yen bounce - I guess Uchida fits the bill more closely than the data. Let me know what you think in the comments.