Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8409754 | Positive electrode active material for secondary cell and nonaqueous electrolyte secondary cell using the same, and method for analysis of positive electrode active material for secondary cell | Ryo Sakai, Yasuhiro Shirakawa, Hajime Takeuchi, Yasumasa Ooya, Kazuki Amemiya +1 more | 2013-04-02 |
| 7455933 | Nonaqueous electrolyte secondary battery | Nao Shimura, Masahiro Sekino, Asako Satoh, Shusuke Inada, Akira Yajima +1 more | 2008-11-25 |
| 6753112 | Positive electrode active material and non-aqueous secondary battery using the same | Yasumasa Ooya, Ryo Sakai, 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 | Ryo Sakai, Yasuhiro Shirakawa, Yasumasa Ooya, Hajime Takeuchi | 2004-02-03 |