Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679612 | High-zirconia fused refractories | Shigeo Endo, Kimio Hirata, Shinji Tsuchiya | 1997-10-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679612 | High-zirconia fused refractories | Shigeo Endo, Kimio Hirata, Shinji Tsuchiya | 1997-10-21 |