Ittetsu is a relatively new maker for us, but what we have seen we have been very impressed with.
SHAPE: Usuba. This single bevel vegetable knife excels at precise cuts. It is one of the three knives always found in a sushi chef's arsenal. This knife is only suitable for right handers. Traditional Japanese knives, such as this, should exclusively be sharpened by hand on whetstones.
STEEL: Shirogami (white) 2 steel. It is a reactive carbon steel which is easy to sharpen and holds an edge well. This steel is often chosen for traditional-style Japanese knives.