Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10186700 | Heat-resistant microporous film and battery separator | Sung-kil Lee, Kazuhiro Okamoto | 2019-01-22 |
| 9136515 | Heat-resistant microporous film and battery separator | Sung-kil Lee, Kazuhiro Okamoto | 2015-09-15 |
| 9036112 | Optical sheet, optical sheet production method, surface-emitting apparatus, and liquid crystal display apparatus | Noriyuki Hirai, Akihiro Horii, Hiroshi Mizuno, Tokuhiro Morioka, Shunichi Kajiya | 2015-05-19 |