Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7147934 | Chemically processed steel sheet excellent in corrosion resistance | Masaya Yamamoto, Shigeyasu MORIKAWA, Shinya Furukawa, Hirofumi Taketsu | 2006-12-12 |
| 6730414 | Chemically processed steel sheet excellent in corrosion resistance | Masaya Yamamoto, Shigeyasu MORIKAWA, Shinya Furukawa, Hirofumi Taketsu | 2004-05-04 |