Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10511032 | Fuel cell with purge manifold | Paravastu Badrinarayanan | 2019-12-17 |
| 9780388 | Fuel cell with purge manifold | Paravastu Badrinarayanan | 2017-10-03 |
| 8501362 | Fuel cell stack | — | 2013-08-06 |
| 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, Koshin Tanaka +1 more | 2013-04-02 |
| 8278000 | High performance proton exchange membrane (PEM) fuel cell | — | 2012-10-02 |
| 6753112 | Positive electrode active material and non-aqueous secondary battery using the same | Yasumasa Ooya, Ryo Sakai, Koshin Tanaka, Hajime Takeuchi, Yasuhiro Shirakawa +1 more | 2004-06-22 |