Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7022433 | Negative active material, method of manufacturing its material, and lead acid battery | Hirofumi Umetani, Yoshihiro Eguchi | 2006-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7022433 | Negative active material, method of manufacturing its material, and lead acid battery | Hirofumi Umetani, Yoshihiro Eguchi | 2006-04-04 |