Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6632559 | Safety device for sealed battery and sealed battery using it | Hiroaki Okamoto, Kinji Saijyo | 2003-10-14 |
| 6531242 | Enclosed cell and sealer | Yoshiyuki Sugimoto, Kinji Saijo, Hiroaki Okamoto, Yoshihiko Isobe | 2003-03-11 |