Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9920416 | Blackening treatment solution for black Cr—Co alloy plating film | Junichi Katayama, Ryuichi Tamura | 2018-03-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9920416 | Blackening treatment solution for black Cr—Co alloy plating film | Junichi Katayama, Ryuichi Tamura | 2018-03-20 |