Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737187 | Closed battery | Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto, Yoshihiko Isobe | 2004-05-18 |
| 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 |
| 6303246 | Hermetically sealed cell and sealing body | Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto, Yoshihiko Isobe | 2001-10-16 |
| 6210825 | Safety valve element for battery and battery case cap with safety valve | Akira Takagi, Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto, Yoshihiko Isobe | 2001-04-03 |