Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11515810 | Energy conversion film and energy conversion element using same | Hiroshi Koike, Seiichiro Iida | 2022-11-29 |
| 11433333 | Electretized sheet and filter | Hiroshi Koike, Seiichiro Iida | 2022-09-06 |