Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6497978 | Explosion-proof safety valve assemblage for a secondary battery | Akiyoshi Takada, Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto | 2002-12-24 |
| 6440599 | Hermetically sealed cell | Akiyoshi Takada, Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto | 2002-08-27 |
| 6423440 | Closed battery and closing member | Akiyoshi Takada, Kinji Saijo, Kazuo Yoshida, Nobuyuki Yoshimoto | 2002-07-23 |
| 6348735 | Electrode for semiconductor device and method for manufacturing same | Tooru Yamaoka, Atsushi Komura, Takeshi Yamauchi, Hiroyuki Yamane | 2002-02-19 |
| 6337504 | Insulated gate transistor with leakage current prevention feature | Hidetoshi Muramoto, Hisayoshi Ooshima, Masahiro Ogino | 2002-01-08 |