Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571287 | Electrolytically producing anodic oxidation coat on Al or Al alloy | Keigo Okubo, Tokuo Kumagai | 1986-02-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4571287 | Electrolytically producing anodic oxidation coat on Al or Al alloy | Keigo Okubo, Tokuo Kumagai | 1986-02-18 |