Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6239577 | Electromagnetic induction type charging device | Yasuhiro Koike, Masaaki Kaneko, Takashi Hyogo | 2001-05-29 |
| 5770334 | Crack-proof-structured battery | Motohiro Kawai, Fumikazu Isogai, Kyoichi Kinoshita, Shinya Sawada | 1998-06-23 |