This snow fighter is model Ki100, it's already retired and a succesor is DD15 or DD16.
Colouring of it's body is black and white stripe. Black monotone colouring is JNR standard for freight car, white stripe indicates max speed is 65km/h.
JNR (Japan National Railways) Model Ki100
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Manufactured: 1928 - 1956
Purpose: Single-tracked line, Symmetrical wedge plow
Axle: 2-2
Gross weight: 28.9m.t. (m.t.=metric ton,1m.t.=1000kg)