Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11008659 | Trivalent chromium chemical conversion liquid for zinc or zinc alloy bases and chemical conversion coating film | Masatoshi Ishikawa, Takashi Koike | 2021-05-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11008659 | Trivalent chromium chemical conversion liquid for zinc or zinc alloy bases and chemical conversion coating film | Masatoshi Ishikawa, Takashi Koike | 2021-05-18 |