Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11742514 | Porous film, separator for secondary batteries, and secondary battery | Nobuyasu Kai, Akimitsu Tsukuda | 2023-08-29 |
| 11637351 | Porous film, separator for rechargeable battery, and rechargeable battery | Nobuyasu Kai, Akimitsu Tsukuda | 2023-04-25 |
| 10950914 | Porous film, separator for secondary batteries, and secondary battery | Nobuyasu Kai, Akimitsu Tsukuda | 2021-03-16 |
| 7790306 | Nickel hydrogen storage battery | Yasuyuki Harada, Makoto Ochi, Toshihiro Sakatani, Masao Takee | 2010-09-07 |