which model to buy for use in japan?

i'm looking to buy a moto x, preferably the new model, but the 2nd gen would suffice too if i have to, to use in japan on ntt docomo or softbank and it would be great if i could also use it on t-mobile and/or Verizon as well. i was told that in order for Japanese carriers to sell you service, the device must have the "Technical Conformity Mark" (it seems im being blocked from posting a link since im so new..)

Can anyone confirm this and also tell me which variant(s) of the phone(s) have this mark?