Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497978 | Explosion-proof safety valve assemblage for a secondary battery | Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto, Yoshihiko Isobe | 2002-12-24 |
| 6440599 | Hermetically sealed cell | Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto, Yoshihiko Isobe | 2002-08-27 |
| 6423440 | Closed battery and closing member | Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto, Yoshihiko Isobe | 2002-07-23 |