Issued Patents 2019
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10518498 | Packaging bag, and method using same for storing polyvinyl alcohol-based resin that contains modified group having active hydrogen | Hirosato Takahashi, Tomoyuki Fujii | 2019-12-31 |