Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803149 | Non-aqueous electrolytic solution secondary battery | Kenji Nakai, Yoshimasa Koishikawa, Youshin Yagi | 2004-10-12 |
| 6733925 | Non-aqueous electrolytic solution secondary battery with electrodes having a specific thickness and porosity | Kenji Nakai, Yoshimasa Koishikawa, Yuichi Takatsuka, Kenji Hara, Tomohiro Iguchi +3 more | 2004-05-11 |
| 6706446 | Non-aqueous electrolytic solution secondary battery | Kenji Nakai, Yoshimasa Koishikawa, Yuichi Takatsuka, Takeshi Nakano, Youshin Yagi | 2004-03-16 |
| 6509114 | Cylindrical lithium-ion battery | Kenji Nakai, Takeshi Nakano | 2003-01-21 |
| 6506518 | Lithium secondary battery | Koutaro Kobayashi, Yoshimasa Koishikawa | 2003-01-14 |
| 6447946 | Lithium-ion battery | Kenji Nakai, Takeshi Nakano, Koji Higashimoto, Kenji Hara, Katsunori Suzuki +1 more | 2002-09-10 |
| 4758482 | Enclosed type lead batteries and method for producing the same | Takumi Yamana, Tomoyuki Ohkura, Akira Ishiodori, Yoshimi Yabui, Yutaka Suzuki +7 more | 1988-07-19 |