Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5223354 | Lead-acid battery plate and its manufacturing method | Keiji Senoo, Takamasa Yoshida, Hideharu Ishikawa | 1993-06-29 |
| 5093970 | Lead-acid battery plate and its manufacturing method | Keiji Senoo, Takamasa Yoshida, Hideharu Ishida | 1992-03-10 |