Sujihiki
Sujihiki (muscle cutter) is most commonly used for filleting, carving, and general purposes. We could say that sujihiki is the equivalent of a western slicer with a few differences. The blade is thinner and made out of harder steel. The harder the steel is, the better the edge retention. These knives will retain their sharpness for a long time. In addition, the bevel on the blade is sharpened at a steeper angle, allowing for a more precise cut.