Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6686092 | Nonaqueous electrolyte type secondary battery with a film casing | Hiroshi Yageta, Tatsuji Numata, Chika Kanbe, Akira Kobayashi, Masato Shirakata | 2004-02-03 |
| 6682850 | Nonaqueous electrolyte solution secondary battery using lithium-manganese composite oxide for positive electrode | Tatsuji Numata, Chika Kanbe, Akira Kobayashi, Masato Shirakata | 2004-01-27 |