Hi, just bought tickets (+wife & 2 kids) for these flights:
Arrival (from Osaka, Itami) to Narita on ANA (terminal 1, domestic) - 15.30
Departure. United to ORD (Narita, terminal 1, international) - 17.55

Flights are most likely not on the same ticket (used "multiple destinations" option on ANA award booking site), but we most likely won't check in our bags anyway.

Any issues? How long does it usually take to transfer from domestic to international @ Terminal 1, Narita?
(I see above that transfer from domestic ANA, T1 to international JAL @ T2 is 110 min., but what about domestic T1 to international T1?)

Thanks.