Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7588606 | Coin type battery and manufacturing method thereof | Tetsuya Hayashi, Kazuyuki Hiranaga, Shinichi Sakamoto, Satoshi Ogawa | 2009-09-15 |
| 7070880 | Coin shaped battery and manufacturing method thereof | Tetsuya Hayashi, Kazuyuki Hiranaga, Shinichi Sakamoto, Satoshi Ogawa | 2006-07-04 |