Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6824921 | Negative electrode material for non-aqueous electrolyte secondary battery and method for producing the same | Takayuki Nakamoto, Harunari Shimamura, Kazuhiro Okamura | 2004-11-30 |
| 6761998 | Non-aqueous electrolyte secondary cell | Yasuhiko Bito, Kazuhiro Okamura, Yoshiaki Nitta | 2004-07-13 |