Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6490436 | Battery pack removing device | Ryoichi Kaiwa, Tetsuya Kubo, Jun Sato | 2002-12-03 |
| 6451474 | Resiliently deformable battery pack | Katsumi Kozu, Shigeru Kajiwara, Shoji Konishi, Takashi Takemura, Junji Fujiwara +1 more | 2002-09-17 |
| 6204631 | Interconnection structure between portable telephone and battery pack | Ryoichi Kaiwa | 2001-03-20 |
| 6137259 | Battery pack with water leakage detecting seal | Ryouichi Kaiwa | 2000-10-24 |