Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6447949 | Battery having electrolyte injecting plug | Mikio Iwata, Kazumasa Matsuo, Hiroaki Yoshida | 2002-09-10 |
| 6448520 | Push button switch | — | 2002-09-10 |
| 6440604 | Cell | Hiroaki Yoshida | 2002-08-27 |
| 6432572 | Battery valve and battery using the same | Hiroaki Yoshida, Hideki Masuda | 2002-08-13 |
| 6335117 | Nonaqueous electrolyte battery having hermetically sealed terminals | Hiroaki Yoshida, Shinya Kitano | 2002-01-01 |