Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7465495 | Composite black oxide particle, method for producing same, black coating material and black matrix | Tomio Hayashi, Koichi Katsuyama, Hiroyuki Shimamura | 2008-12-16 |
| 7438754 | Cobalt-containing black pigment particulates | Tomoyuki Hoshino, Koichi Katsuyama, Takashi Nakashima | 2008-10-21 |