Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11764405 | Lithium ion secondary battery element including negative electrode with negative electrode active material layer tapered part having smaller density than negative electrode active material layer flat part | Aika Kimura, Toshihiro Horiuchi | 2023-09-19 |