Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659062 | Non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions | Keiichi Yokoyama | 1997-08-19 |
| 5633099 | Carbonate compounds, non-aqueous electrolytic solutions and batteries comprising non-aqueous electrolytic solutions | Keiichi Yokoyama, Shigeru Fujita, Atsuo Omaru | 1997-05-27 |