Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7022176 | Carbon black for coloring cement and method for coloring cement-formed product | Daisuke Inoue, Hidetake Sakurai, Masato Wake | 2006-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7022176 | Carbon black for coloring cement and method for coloring cement-formed product | Daisuke Inoue, Hidetake Sakurai, Masato Wake | 2006-04-04 |