Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5023115 | Method of forming coatings in coated tubular metal members | — | 1991-06-11 |
| 4795503 | Seam welded steel pipe proofed against corrosion and provided with coating for preventing fluid from oxidation and method for production thereof | Teruhisa Takahashi | 1989-01-03 |