Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308413 | Process for phosphating metal surface to make thereon a zinc phosphate coating film | Tamotsu Sobata, Minoru Ishida | 1994-05-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308413 | Process for phosphating metal surface to make thereon a zinc phosphate coating film | Tamotsu Sobata, Minoru Ishida | 1994-05-03 |