Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8501047 | Mixed carbon material and negative electrode for a nonaqueous secondary battery | Hiroshi Yamamoto, Tatsuo Nagata | 2013-08-06 |
| 8404385 | Mixed carbon material including graphite powder cores and surface carbon material on a surface thereof and negative electrode for nonaqueous secondary battery | Hiroshi Yamamoto, Tatsuo Nagata | 2013-03-26 |
| 8394530 | Carbon material and a process for its manufacture | Hiroshi Yamamoto | 2013-03-12 |
| 8038977 | Carbon powder suitable as a negative electrode material for nonaqueous secondary batteries | Hiroshi Yamamoto | 2011-10-18 |
| 6203886 | Skew-toothed belt and method for manufacturing the same | Hiroshi Kikuchi, Mitsuo Kasahara, Yoshinori Itou | 2001-03-20 |
| 4302197 | Toothed belt | Kazuo Kimura, Norio Harada | 1981-11-24 |