Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7141229 | Graphite material for negative pole of lithium secondary battery, method of manufacturing the graphite material, and lithium secondary battery | Yoichi Kawano, Tetsusei Fukuda, Tsutomu Sugiura, Takeshi Hamada, Hiromasa Shoji | 2006-11-28 |
| 6194067 | Carbonaceous particles and carbonaceous fibers both coated with boron nitride, and lithium secondary cells produced by using the same as negative active material | Takeshi Hamada, Tsutomu Sugiura, Kimihito Suzuki, Koki Inada, Yoshitaka Yamana | 2001-02-27 |