KK

Koichi Katsuyama

MC Mitsui Mining & Smelting Co.: 2 patents #281 of 838Top 35%
📍 Okayama, JP: #543 of 1,590 inventorsTop 35%
Overall (All Time): #2,150,806 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7465495 Composite black oxide particle, method for producing same, black coating material and black matrix Shoichi Fujiyasu, Tomio Hayashi, Hiroyuki Shimamura 2008-12-16
7438754 Cobalt-containing black pigment particulates Tomoyuki Hoshino, Shoichi Fujiyasu, Takashi Nakashima 2008-10-21