Almost any thing can be ordered from japan.
But I would look at Zipbaits, 123F and the new 123F tidal (super shallow version, out in september)
BassDays LogSurf 124F
Daiwa Morethan X Cross 95F and 120F
Mars Barrow (soft/hard hybrid bait) 130mm
All well know and highly thought of in Japan.
Where in Japan are you going?
I would second the Daiwa Xcross and look at some of the other Daiwa lures like various Shore Line Shiners. They are different lures to the Saltiga minnows available here and a wider range of colours.
in regards to ZIP BAITS we have had problems with the paint job on our bream lures not very happy paint coming of after one fishing trip getting out of them now try tiemco's good lures but japan has shops that sell lures that we will never see just tell them wat you fish for im sure the bank manager going to love you lol