Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4345611 | Safety valve means for battery | Hisao Oishi, Seiki Yoshida | 1982-08-24 |
| 4315061 | Battery with internal electrical connectors | Satoshi Narukawa, Shigehiro Nakaido | 1982-02-09 |
| 4314009 | Battery | Shigehiro Nakaido | 1982-02-02 |