Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975391 | Enamel frit composition for direct coating | Tadao Shimizu, Yoshihiro Iizawa | 1990-12-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975391 | Enamel frit composition for direct coating | Tadao Shimizu, Yoshihiro Iizawa | 1990-12-04 |