Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6811923 | ACTIVE MATERIAL FOR ANODE OF SECONDARY CELL AND METHOD FOR PRODUCTION THEREOF AND NON-AQUEOUS ELECTROLYTE SECONDARY CELL, AND RECYCLED ELECTRONIC FUNCTIONAL MATERIAL AND METHOD FOR RECYCLING ELECTRONIC FUNCTIONAL MATERIAL | Yasuhiro Shirakawa, Kotaro Iyasu, Nobukazu Suzuki, Hisayasu Mitsui | 2004-11-02 |
| 6753112 | Positive electrode active material and non-aqueous secondary battery using the same | Yasumasa Ooya, Koshin Tanaka, Kazuki Amemiya, Hajime Takeuchi, Yasuhiro Shirakawa +1 more | 2004-06-22 |
| 6686093 | Positive electrode active material for nonaqueous electrolytic solution secondary battery and nonaqueous electrolytic solution secondary battery therewith | Yasuhiro Shirakawa, Yasumasa Ooya, Koshin Tanaka, Hajime Takeuchi | 2004-02-03 |