I.O. Shen MASTER GRADE knives have overcome this problem by using a layer of extremely hard Japanese steel (Rockwell 62º), which is sandwiched between two layers of softer stainless steel (Rockwell 10º), to produce the ultimate cutting edge. The softer layers add a protective shock absorbing element to the blade (reduce resistance as the knife cut through the food), whilst the HRC62 steel which runs through the middle is exposed at the edge of the blade to ensure that your knife is the sharpest blade that can possibly be manufactured.
I.O. Shen MASTER GRADE is one of two manufactures left in the world that are still manufacturing 3-layer knives, each took 7 hours craftsmanship to produce such a perfect blade edge.