I think Kodak must have major supply issues in Asia after the whole company changeover (or damand for 120 film in asia is going through the roof and I don't think that's the case). I have just checked yodobashi and there's little bit stock left in Kyoto (very small fridge in that store behind counter) and Sapporo (same deal). All other places are out of stock again and it's on order. No dates when it's going to be back...
With Kodak 800, only 8 stores have it and it's none of the big ones. Only smaller cities. Small supply too.
Kodak 160, is plentiful everywhere.