Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5820819 | Steel for chimney or gas duct, excellent in pitting resistance and rust adhesion | Koji Tanabe, Hidesato Mabuchi, Yukio Tomita, Akira Usami, Hiroshi Kondo +4 more | 1998-10-13 |