I was looking at some Yoshihiro knives, and came across Yasuki Aoko as the steel. I went looking on zknives and found nothing. Is this something new or just a rename.
aoko just means blue steel, I think. But there are blue #1 aoichiko and blue #2 aoniko. blue #1 is a bit more rarely used in a production, that's why blue #2 guessing.