Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11108055 | Fuel cell | Yoko Kasai, Tsutomu Kawashima, Tsutomu Fujii, Shinichiro Imura, Toshihiro Otsuka +2 more | 2021-08-31 |
| 10978716 | Gas diffusion layer for fuel battery, membrane electrode assembly, and fuel battery | Tsutomu Kawashima, Kenichi Ezaki | 2021-04-13 |