Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548211 | Negative electrode plate for lead storage battery | Akira Kamada | 2003-04-15 |
| 6367131 | Method for producing grid for a lead storage battery | Takao Omae, Shigeharu Osumi, Kenji Yamanaka | 2002-04-09 |
| 6177212 | Valve-regulated lead-acid battery | Akira Kamada | 2001-01-23 |
| 5128218 | Sealed lead-acid battery | Akio Tokunaga, Toshiaki Hayashi, Teruhiro Hatanaka, Takao Omae | 1992-07-07 |