The color(s) DARK BLUE, BLUE, GREY, PURPLE and WHITE is/are claimed as a feature of the mark.
"MATERIALS"
The mark consists of the color dark blue in the "H", "K" and "U" of "HOKU"; the color grey in the word "Materials"; the "O" in "HOKU" is stylized to represent a Hydrogen atom and is colored grey, purple and dark blue from bottom to top with a white line in the center; the star shape has a white center with dark blue points.
The English translation of "HOKU" in the mark is "STAR".